{"id":2578,"date":"2026-04-08T17:38:25","date_gmt":"2026-04-08T17:38:25","guid":{"rendered":"https:\/\/multahost.com\/blog\/?p=2578"},"modified":"2026-04-08T18:10:17","modified_gmt":"2026-04-08T18:10:17","slug":"vos3000-parameter-description","status":"publish","type":"post","link":"https:\/\/multahost.com\/blog\/vos3000-parameter-description\/","title":{"rendered":"VOS3000 Parameter Description: Complete Configuration Reference Guide Free"},"content":{"rendered":"\n<h1 class=\"wp-block-heading\" id=\"vos-3000-parameter-description-complete-configuration-reference-guide\">VOS3000 Parameter Description: Complete Configuration Reference Guide<\/h1>\n\n\n\n<p><strong>VOS3000 parameter description is the most comprehensive technical reference available for VoIP system administrators who need to configure and optimize their softswitch installations.<\/strong> This complete configuration reference guide covers every single parameter available in VOS3000 version 2.1.9.07, organized into logical categories for easy navigation and practical implementation. Whether you are managing a small wholesale VoIP operation or a large-scale telecom infrastructure, understanding these parameters is essential for achieving optimal call quality, billing accuracy, and system reliability. Based on the official VOS3000 2.1.9.07 manual (Section 4.3.5, Pages 222-252), this guide provides detailed explanations of each parameter including default values, valid ranges, and practical usage scenarios.<\/p>\n\n\n\n<p>\ud83d\udcde <strong>Need help with VOS3000 parameter configuration?<\/strong> WhatsApp: <a href=\"https:\/\/wa.me\/8801911119966\" target=\"_blank\" rel=\"noreferrer noopener\">+8801911119966<\/a><\/p>\n\n\n\n<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><h2>Table of Contents<\/h2><nav><ul><li><a href=\"#vos-3000-parameter-description-complete-configuration-reference-guide\">VOS3000 Parameter Description: Complete Configuration Reference Guide<\/a><ul><li><a href=\"#\ud83d\udd0d-what-is-vos-3000-parameter-description\">\ud83d\udd0d What is VOS3000 Parameter Description<\/a><ul><li><a href=\"#\ud83d\udcca-vos-3000-parameter-description-categories\">\ud83d\udcca VOS3000 Parameter Description Categories<\/a><\/li><\/ul><\/li><li><a href=\"#\u2699\ufe0f-how-to-access-vos-3000-parameter-description-settings\">\u2699\ufe0f How to Access VOS3000 Parameter Description Settings<\/a><ul><li><a href=\"#\ud83d\udccd-navigation-paths-for-parameter-access\">\ud83d\udccd Navigation Paths for Parameter Access<\/a><\/li><\/ul><\/li><li><a href=\"#\ud83d\udccb-vos-3000-server-parameters-complete-list\">\ud83d\udccb VOS3000 Server Parameters Complete List<\/a><ul><li><a href=\"#\ud83d\udd14-alarm-configuration-parameters-in-vos-3000\">\ud83d\udd14 Alarm Configuration Parameters in VOS3000<\/a><\/li><li><a href=\"#\ud83d\udcb0-billing-system-parameters-in-vos-3000-parameter-description\">\ud83d\udcb0 Billing System Parameters in VOS3000 Parameter Description<\/a><\/li><li><a href=\"#\ud83d\udcca-cdr-and-reporting-parameters\">\ud83d\udcca CDR and Reporting Parameters<\/a><\/li><li><a href=\"#\ud83d\udcc8-automatic-report-generation-parameters\">\ud83d\udcc8 Automatic Report Generation Parameters<\/a><\/li><li><a href=\"#\ud83d\udd12-security-and-authentication-parameters\">\ud83d\udd12 Security and Authentication Parameters<\/a><\/li><li><a href=\"#\ud83d\udda5\ufe0f-system-configuration-parameters\">\ud83d\udda5\ufe0f System Configuration Parameters<\/a><\/li><\/ul><\/li><li><a href=\"#\ud83d\udce1-softswitch-h-323-parameters-in-vos-3000-parameter-description\">\ud83d\udce1 Softswitch H323 Parameters in VOS3000 Parameter Description<\/a><\/li><li><a href=\"#\ud83d\udcde-softswitch-sip-parameters-complete-reference\">\ud83d\udcde Softswitch SIP Parameters Complete Reference<\/a><ul><li><a href=\"#\ud83d\udd11-sip-authentication-parameters\">\ud83d\udd11 SIP Authentication Parameters<\/a><\/li><li><a href=\"#\ud83d\udce1-nat-keep-alive-parameters\">\ud83d\udce1 NAT Keep-Alive Parameters<\/a><\/li><li><a href=\"#\u23f1\ufe0f-sip-session-timer-parameters\">\u23f1\ufe0f SIP Session Timer Parameters<\/a><\/li><\/ul><\/li><li><a href=\"#\ud83c\udf9b\ufe0f-softswitch-system-parameters-in-vos-3000-parameter-description\">\ud83c\udf9b\ufe0f Softswitch System Parameters in VOS3000 Parameter Description<\/a><ul><li><a href=\"#\ud83c\udfac-media-and-call-processing-parameters\">\ud83c\udfac Media and Call Processing Parameters<\/a><\/li><li><a href=\"#\ud83d\udeab-dynamic-black-list-parameters\">\ud83d\udeab Dynamic Black List Parameters<\/a><\/li><\/ul><\/li><li><a href=\"#\ud83c\udfb5-audio-service-parameters-in-vos-3000-parameter-description\">\ud83c\udfb5 Audio Service Parameters in VOS3000 Parameter Description<\/a><\/li><li><a href=\"#\u2699\ufe0f-vos-3000-parameter-description-best-practices\">\u2699\ufe0f VOS3000 Parameter Description Best Practices<\/a><ul><li><a href=\"#\ud83d\udccb-change-management-recommendations\">\ud83d\udccb Change Management Recommendations<\/a><\/li><li><a href=\"#\ud83d\udd27-parameter-optimization-tips\">\ud83d\udd27 Parameter Optimization Tips<\/a><\/li><\/ul><\/li><li><a href=\"#\ud83d\udcb0-vos-3000-installation-and-support-services\">\ud83d\udcb0 VOS3000 Installation and Support Services<\/a><\/li><li><a href=\"#\ud83d\udd17-related-resources\">\ud83d\udd17 Related Resources<\/a><\/li><li><a href=\"#\u2753-frequently-asked-questions-about-vos-3000-parameter-description\">\u2753 Frequently Asked Questions about VOS3000 Parameter Description<\/a><ul><li><a href=\"#what-is-the-most-important-vos-3000-parameter-description-for-billing-accuracy\">What is the most important VOS3000 parameter description for billing accuracy?<\/a><\/li><li><a href=\"#how-do-i-enable-nat-keep-alive-in-vos-3000-parameter-description\">How do I enable NAT keep-alive in VOS3000 parameter description?<\/a><\/li><li><a href=\"#what-happens-if-i-set-ss-sip-session-ttl-too-low\">What happens if I set SS_SIP_SESSION_TTL too low?<\/a><\/li><li><a href=\"#how-do-i-disable-automatic-report-generation\">How do I disable automatic report generation?<\/a><\/li><li><a href=\"#can-i-use-vos-3000-parameter-description-to-limit-maximum-call-duration\">Can I use VOS3000 parameter description to limit maximum call duration?<\/a><\/li><li><a href=\"#where-can-i-get-help-with-vos-3000-parameter-description-configuration\">Where can I get help with VOS3000 parameter description configuration?<\/a><\/li><\/ul><\/li><li><a href=\"#\ud83d\udcde-get-expert-vos-3000-parameter-description-support\">\ud83d\udcde Get Expert VOS3000 Parameter Description Support<\/a><\/li><li><a href=\"#\ud83d\udcde-need-call-center-setup-support\">\ud83d\udcde Need Professional VOS3000 Setup Support?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\ud83d\udd0d-what-is-vos-3000-parameter-description\">\ud83d\udd0d What is VOS3000 Parameter Description<\/h2>\n\n\n\n<p>Reference: VOS3000 2.1.9.07 Manual, Section 4.3.5 (Pages 222-252)<\/p>\n\n\n\n<p>The VOS3000 parameter description framework organizes all configuration settings into a hierarchical structure that reflects the functional architecture of the softswitch system. At the highest level, parameters are divided into three primary categories: VOS3000 server parameters, softswitch parameters (including H323, SIP, and system subcategories), and audio service parameters. Each category controls specific aspects of system behavior, and understanding these categories is crucial for effective system administration. The VOS3000 softswitch platform contains over 200 configurable parameters that control every aspect of system behavior, from billing precision and alarm thresholds to SIP timer values and media proxy settings.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\ud83d\udcca-vos-3000-parameter-description-categories\">\ud83d\udcca VOS3000 Parameter Description Categories<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">\ud83d\udcc1 Category<\/th><th class=\"has-text-align-left\" data-align=\"left\">\ud83d\udccb Description<\/th><th class=\"has-text-align-left\" data-align=\"left\">\ud83d\udcd6 Manual Pages<\/th><\/tr><\/thead><tbody><tr><td><strong>VOS3000 Parameters<\/strong><\/td><td>Server-level parameters for billing, alarms, reports, security<\/td><td>222-228<\/td><\/tr><tr><td><strong>Softswitch H323 Parameters<\/strong><\/td><td>H.323 protocol settings for gateway communications<\/td><td>229-230<\/td><\/tr><tr><td><strong>Softswitch SIP Parameters<\/strong><\/td><td>SIP protocol settings including NAT, timers, authentication<\/td><td>230-237<\/td><\/tr><tr><td><strong>Softswitch System Parameters<\/strong><\/td><td>Core softswitch settings for media, calls, endpoints<\/td><td>237-239<\/td><\/tr><tr><td><strong>Audio Service Parameters<\/strong><\/td><td>IVR, voicemail, callback service settings<\/td><td>239-241<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u2699\ufe0f-how-to-access-vos-3000-parameter-description-settings\">\u2699\ufe0f How to Access VOS3000 Parameter Description Settings<\/h2>\n\n\n\n<p>Accessing the VOS3000 parameter description settings requires navigating through the VOS3000 client interface to the appropriate configuration menus. For server parameters, administrators should navigate to System Management, then select System Parameter to view and modify the parameter list. For softswitch parameters including H323, SIP, and system subcategories, the path is Operation Management followed by Softswitch Management, then Additional Settings, and finally System Parameter. Audio service parameters are accessed through the audio service configuration interface.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\ud83d\udccd-navigation-paths-for-parameter-access\">\ud83d\udccd Navigation Paths for Parameter Access<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">Step<\/th><th class=\"has-text-align-left\" data-align=\"left\">Navigation Path<\/th><th class=\"has-text-align-left\" data-align=\"left\">Action<\/th><\/tr><\/thead><tbody><tr><td><strong>1<\/strong><\/td><td>System Management<\/td><td>Expand navigation tree<\/td><\/tr><tr><td><strong>2<\/strong><\/td><td>System Parameter<\/td><td>Double-click to open parameter table<\/td><\/tr><tr><td><strong>3<\/strong><\/td><td>Operation Management &gt; Softswitch Management<\/td><td>Select softswitch node<\/td><\/tr><tr><td><strong>4<\/strong><\/td><td>Additional Settings<\/td><td>Right-click \u2192 Additional settings<\/td><\/tr><tr><td><strong>5<\/strong><\/td><td>System Parameter Tab<\/td><td>Find and modify parameters<\/td><\/tr><tr><td><strong>6<\/strong><\/td><td>Apply Changes<\/td><td>Click OK to save modifications<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\ud83d\udccb-vos-3000-server-parameters-complete-list\">\ud83d\udccb VOS3000 Server Parameters Complete List<\/h2>\n\n\n\n<p>Reference: VOS3000 2.1.9.07 Manual, Section 4.3.5.1 (Pages 222-228)<\/p>\n\n\n\n<p>The VOS3000 parameter description for server parameters encompasses all configuration settings that control the core server functionality of the softswitch platform. These parameters determine how the server handles billing calculations, generates reports, manages alarms, interacts with databases, and enforces security policies. Server parameters are prefixed with &#8220;SERVER_&#8221; in the parameter name, making them easily identifiable in the configuration interface.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\ud83d\udd14-alarm-configuration-parameters-in-vos-3000\">\ud83d\udd14 Alarm Configuration Parameters in VOS3000<\/h3>\n\n\n\n<p>Alarm configuration parameters within the VOS3000 parameter description control how the system monitors and reports various operational conditions. These parameters define thresholds for generating alerts, specify notification methods, and configure alarm suppression settings. Proper configuration of alarm parameters ensures that administrators receive timely notifications of critical system conditions without being overwhelmed by excessive alerts.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">\u2699\ufe0f Parameter Name<\/th><th class=\"has-text-align-left\" data-align=\"left\">\ud83d\udcca Default<\/th><th class=\"has-text-align-left\" data-align=\"left\">\ud83d\udcdd Description<\/th><th class=\"has-text-align-left\" data-align=\"left\">\ud83d\udcd6 Page<\/th><\/tr><\/thead><tbody><tr><td><strong>SERVER_ALARM_CUSTOMER_BALANCE_MAX_SIZE<\/strong><\/td><td>1000<\/td><td>Number of accounts in Balance Alarm settings menu<\/td><td>223<\/td><\/tr><tr><td><strong>SERVER_ALARM_DATABASE_IGNORE_ERROR_CODE<\/strong><\/td><td>&#8211;<\/td><td>Database error codes to ignore without triggering warnings<\/td><td>223<\/td><\/tr><tr><td><strong>SERVER_ALARM_DISABLE<\/strong><\/td><td>Off<\/td><td>Off enables alarm system, On disables all alarms<\/td><td>223<\/td><\/tr><tr><td><strong>SERVER_ALARM_E164S<\/strong><\/td><td>Default<\/td><td>Default E164 number for Alarm Management<\/td><td>223<\/td><\/tr><tr><td><strong>SERVER_ALARM_EMAIL<\/strong><\/td><td>Default<\/td><td>Default email address for alarm notifications<\/td><td>223<\/td><\/tr><tr><td><strong>SERVER_ALARM_EMAIL_DELAY<\/strong><\/td><td>300<\/td><td>Interval in seconds between email alarm notifications<\/td><td>223<\/td><\/tr><tr><td><strong>SERVER_ALARM_ENABLE_EMAIL<\/strong><\/td><td>Off<\/td><td>Enable email alarm notifications (On\/Off)<\/td><td>223<\/td><\/tr><tr><td><strong>SERVER_ALARM_ENABLE_VOICE<\/strong><\/td><td>Off<\/td><td>Enable voice call alarm notifications (On\/Off)<\/td><td>223<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\ud83d\udcb0-billing-system-parameters-in-vos-3000-parameter-description\">\ud83d\udcb0 Billing System Parameters in VOS3000 Parameter Description<\/h3>\n\n\n\n<p>The billing system parameters form a critical component of the VOS3000 parameter description because they directly affect revenue calculation and financial accuracy. These parameters control billing precision, fee calculation methods, free call duration settings, and various billing behaviors that determine how calls are charged. Misconfiguration of billing parameters can result in revenue loss, customer disputes, or billing errors.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">\u2699\ufe0f Parameter Name<\/th><th class=\"has-text-align-left\" data-align=\"left\">\ud83d\udcca Default<\/th><th class=\"has-text-align-left\" data-align=\"left\">\ud83d\udcdd Description<\/th><th class=\"has-text-align-left\" data-align=\"left\">\ud83d\udcd6 Page<\/th><\/tr><\/thead><tbody><tr><td><strong>SERVER_BILLING_FEE_PRECISION<\/strong><\/td><td>0.0000000<\/td><td>Billing money accuracy precision (0-1000 decimal places)<\/td><td>224<\/td><\/tr><tr><td><strong>SERVER_BILLING_FEE_UNIT<\/strong><\/td><td>0.0000000<\/td><td>Billing money unit for charge calculations (0-1000)<\/td><td>224<\/td><\/tr><tr><td><strong>SERVER_BILLING_FORWARD_PREFIX<\/strong><\/td><td>&#8211;<\/td><td>Billing prefix for Call Transfer scenarios<\/td><td>224<\/td><\/tr><tr><td><strong>SERVER_BILLING_FREE_E164S<\/strong><\/td><td>&#8211;<\/td><td>Service numbers for free calls with no time limit<\/td><td>224<\/td><\/tr><tr><td><strong>SERVER_BILLING_FREE_TIME<\/strong><\/td><td>0<\/td><td>Free duration in seconds to deduct from charged time<\/td><td>224<\/td><\/tr><tr><td><strong>SERVER_BILLING_GATEWAY_ROUTE_PREFIX<\/strong><\/td><td>&#8211;<\/td><td>Routing gateway additional prefix for billing<\/td><td>224<\/td><\/tr><tr><td><strong>SERVER_BILLING_HOLD_TIME_PRECISION<\/strong><\/td><td>1000<\/td><td>Time precision in milliseconds for billing duration<\/td><td>224<\/td><\/tr><tr><td><strong>SERVER_BILLING_NO_CDR_E164S<\/strong><\/td><td>&#8211;<\/td><td>Numbers that will not create CDR records<\/td><td>224<\/td><\/tr><tr><td><strong>SERVER_BILLING_PREVENT_OVERDRAFT_ADVANCE_TIME<\/strong><\/td><td>1<\/td><td>Account anti-overdraft advance minutes (1-15)<\/td><td>224<\/td><\/tr><tr><td><strong>SERVER_BILLING_PROFIT_CALCULATE<\/strong><\/td><td>Call charges &#8211; Sub &#8211; Call expense<\/td><td>Formula for call profit calculation<\/td><td>224<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\ud83d\udcca-cdr-and-reporting-parameters\">\ud83d\udcca CDR and Reporting Parameters<\/h3>\n\n\n\n<p>Call Detail Record (CDR) and reporting parameters within the VOS3000 parameter description govern how call records are generated, stored, and processed for reporting purposes. These parameters determine CDR file formats, storage intervals, queue sizes, and automatic report generation settings. Proper configuration of CDR parameters is essential for maintaining accurate call records and enabling detailed traffic analysis.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">\u2699\ufe0f Parameter Name<\/th><th class=\"has-text-align-left\" data-align=\"left\">\ud83d\udcca Default<\/th><th class=\"has-text-align-left\" data-align=\"left\">\ud83d\udcdd Description<\/th><th class=\"has-text-align-left\" data-align=\"left\">\ud83d\udcd6 Page<\/th><\/tr><\/thead><tbody><tr><td><strong>SERVER_CDR_FILE_WRITE_INTERVAL<\/strong><\/td><td>None<\/td><td>Interval in seconds for creating new CDR files (60-86400)<\/td><td>225<\/td><\/tr><tr><td><strong>SERVER_CDR_FILE_WRITE_MAX<\/strong><\/td><td>2048<\/td><td>Maximum number of CDR files to retain (10-4096)<\/td><td>225<\/td><\/tr><tr><td><strong>SERVER_CDR_REAL_TIME_REPORT_SERVER<\/strong><\/td><td>&#8211;<\/td><td>Address for real-time CDR reporting server<\/td><td>225<\/td><\/tr><tr><td><strong>SERVER_MAX_CDR_PENDING_LIST_LENGTH<\/strong><\/td><td>100000<\/td><td>Maximum length of CDR processing queue (10000-100000)<\/td><td>225<\/td><\/tr><tr><td><strong>SERVER_QUERY_CDR_DENY_TIME<\/strong><\/td><td>&#8211;<\/td><td>Hours when CDR query is denied (e.g., 18,19,20,21)<\/td><td>225<\/td><\/tr><tr><td><strong>SERVER_QUERY_CDR_MAX_DAY_INTERVAL<\/strong><\/td><td>31<\/td><td>Maximum days for CDR query interval<\/td><td>225<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\ud83d\udcc8-automatic-report-generation-parameters\">\ud83d\udcc8 Automatic Report Generation Parameters<\/h3>\n\n\n\n<p>The VOS3000 parameter description includes numerous parameters that control automatic report generation for business intelligence and operational analysis purposes. These reports are generated daily at approximately 1:00 AM and include revenue reports, gateway billing analysis, clearing reports, and various analytical reports.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">\u2699\ufe0f Parameter Name<\/th><th class=\"has-text-align-left\" data-align=\"left\">\ud83d\udcca Default<\/th><th class=\"has-text-align-left\" data-align=\"left\">\ud83d\udcdd Report Generated<\/th><\/tr><\/thead><tbody><tr><td><strong>SERVER_REPORT_AGENT_INCOME<\/strong><\/td><td>On<\/td><td>Agent Income Report<\/td><\/tr><tr><td><strong>SERVER_REPORT_CLEARING_CUSTOMER_FEE<\/strong><\/td><td>Off<\/td><td>Clearing Account Details Report<\/td><\/tr><tr><td><strong>SERVER_REPORT_CUSTOMER_FEE<\/strong><\/td><td>On<\/td><td>Revenue Details Report<\/td><\/tr><tr><td><strong>SERVER_REPORT_GATEWAY_FEE<\/strong><\/td><td>On<\/td><td>Gateway Bill Report<\/td><\/tr><tr><td><strong>SERVER_REPORT_PHONE_FEE<\/strong><\/td><td>On<\/td><td>Phone Bill Report<\/td><\/tr><tr><td><strong>SERVER_REPORT_GATEWAY_ROUTING_LOCATION_ASR_ACD<\/strong><\/td><td>On<\/td><td>Routing Gateway Area Analysis Report<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\ud83d\udd12-security-and-authentication-parameters\">\ud83d\udd12 Security and Authentication Parameters<\/h3>\n\n\n\n<p>Security parameters in the VOS3000 parameter description establish the foundational security posture of the softswitch system. These parameters control password policies, login attempt restrictions, session management, and various authentication behaviors that protect the system from unauthorized access. In today&#8217;s threat landscape where VoIP systems are frequent targets for fraud and abuse, proper configuration of security parameters is essential.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">\u2699\ufe0f Parameter Name<\/th><th class=\"has-text-align-left\" data-align=\"left\">\ud83d\udcca Default<\/th><th class=\"has-text-align-left\" data-align=\"left\">\ud83d\udcdd Description<\/th><th class=\"has-text-align-left\" data-align=\"left\">\ud83d\udcd6 Page<\/th><\/tr><\/thead><tbody><tr><td><strong>SERVER_LOGIN_FAILED_DISABLE_TIME<\/strong><\/td><td>120<\/td><td>Seconds to disable login after failed attempts (30-7200)<\/td><td>226<\/td><\/tr><tr><td><strong>SERVER_PASSWORD_LENGTH<\/strong><\/td><td>8<\/td><td>Default minimum password length requirement<\/td><td>226<\/td><\/tr><tr><td><strong>SERVER_PASSWORD_TERMINAL_ADDITIONAL_CHARACTERS<\/strong><\/td><td>&#8211;<\/td><td>Additional characters for phone\/gateway random passwords<\/td><td>226<\/td><\/tr><tr><td><strong>SERVER_VERIFY_CLEARING_CUSTOMER<\/strong><\/td><td>Off<\/td><td>Verify clearing account balance against minimum limit<\/td><td>226<\/td><\/tr><tr><td><strong>SERVER_VERIFY_CLEARING_CUSTOMER_REMAIN_MONEY_LIMIT<\/strong><\/td><td>0.0<\/td><td>Clearing account minimum balance limit (0-10000000)<\/td><td>226<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\ud83d\udda5\ufe0f-system-configuration-parameters\">\ud83d\udda5\ufe0f System Configuration Parameters<\/h3>\n\n\n\n<p>System configuration parameters in the VOS3000 parameter description control various operational aspects of the server including NTP time synchronization, display settings, database version management, and network configuration. These parameters establish the operational environment in which the softswitch functions.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">\u2699\ufe0f Parameter Name<\/th><th class=\"has-text-align-left\" data-align=\"left\">\ud83d\udcca Default<\/th><th class=\"has-text-align-left\" data-align=\"left\">\ud83d\udcdd Description<\/th><th class=\"has-text-align-left\" data-align=\"left\">\ud83d\udcd6 Page<\/th><\/tr><\/thead><tbody><tr><td><strong>SERVER_NTP_SERVER<\/strong><\/td><td>time-a.nist.gov<\/td><td>Network time server (SNTP) for system time sync<\/td><td>227<\/td><\/tr><tr><td><strong>SERVER_DATABASE_VERSION<\/strong><\/td><td>&#8211;<\/td><td>Current database version identifier<\/td><td>227<\/td><\/tr><tr><td><strong>SERVER_DISPLAY_MONEY_PRECISION<\/strong><\/td><td>3<\/td><td>Money display precision (e.g., 3 shows 1.000)<\/td><td>227<\/td><\/tr><tr><td><strong>SERVER_DNS_UPDATE_INTERVAL<\/strong><\/td><td>600<\/td><td>DNS update interval in seconds for Domain Management<\/td><td>227<\/td><\/tr><tr><td><strong>SERVER_SOFTSWITCH_CLUSTER<\/strong><\/td><td>&#8211;<\/td><td>IP list of softswitch cluster nodes<\/td><td>227<\/td><\/tr><tr><td><strong>SERVER_QUERY_MAX_SIZE<\/strong><\/td><td>30000000<\/td><td>Maximum data query limit in items<\/td><td>227<\/td><\/tr><tr><td><strong>SERVER_QUERY_ONE_PAGE_SIZE<\/strong><\/td><td>10000<\/td><td>Number of data items per query page<\/td><td>227<\/td><\/tr><tr><td><strong>SERVER_TRACE_FILE_LENGTH<\/strong><\/td><td>40960<\/td><td>Debug file size in KB<\/td><td>227<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\ud83d\udce1-softswitch-h-323-parameters-in-vos-3000-parameter-description\">\ud83d\udce1 Softswitch H323 Parameters in VOS3000 Parameter Description<\/h2>\n\n\n\n<p>Reference: VOS3000 2.1.9.07 Manual, Section 4.3.5.2 (Pages 229-230)<\/p>\n\n\n\n<p>The H323 parameters within the VOS3000 parameter description control the behavior of H.323 protocol signaling for gateway communications. H.323 is an ITU-T standard protocol suite for multimedia communications over packet-based networks, and it remains widely deployed in enterprise and carrier VoIP environments despite the growing adoption of SIP.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">\u2699\ufe0f Parameter Name<\/th><th class=\"has-text-align-left\" data-align=\"left\">\ud83d\udcca Default<\/th><th class=\"has-text-align-left\" data-align=\"left\">\ud83d\udcdd Description<\/th><th class=\"has-text-align-left\" data-align=\"left\">\ud83d\udcd6 Page<\/th><\/tr><\/thead><tbody><tr><td><strong>SS_H245_PORT_RANGE<\/strong><\/td><td>10000,39999<\/td><td>H245 port range for media control channels<\/td><td>229<\/td><\/tr><tr><td><strong>SS_H323_DTMF_METHOD<\/strong><\/td><td>H.245 alphanumeric<\/td><td>Default DTMF transmission mode for H.323<\/td><td>229<\/td><\/tr><tr><td><strong>SS_H323_NUMBERING_PLAN<\/strong><\/td><td>UnknownPlan(0)<\/td><td>Default numbering plan in Routing Gateway H323<\/td><td>229<\/td><\/tr><tr><td><strong>SS_H323_NUMBER_TYPE<\/strong><\/td><td>UnknownType(0)<\/td><td>Default number type in Routing Gateway H323<\/td><td>229<\/td><\/tr><tr><td><strong>SS_H323_TIMEOUT_ALERTING<\/strong><\/td><td>120<\/td><td>Alerting timeout in seconds for Routing Gateway H323<\/td><td>230<\/td><\/tr><tr><td><strong>SS_H323_TIMEOUT_SETUP<\/strong><\/td><td>5<\/td><td>Setup timeout in seconds for H.323 call establishment<\/td><td>230<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\ud83d\udcde-softswitch-sip-parameters-complete-reference\">\ud83d\udcde Softswitch SIP Parameters Complete Reference<\/h2>\n\n\n\n<p>Reference: VOS3000 2.1.9.07 Manual, Section 4.3.5.2 (Pages 230-237)<\/p>\n\n\n\n<p>The SIP parameters represent one of the most extensive sections within the VOS3000 parameter description, reflecting the complexity and flexibility of the Session Initiation Protocol. SIP has become the dominant signaling protocol for VoIP communications, and VOS3000 provides comprehensive configuration options for controlling every aspect of SIP behavior including authentication, NAT traversal, session timers, and timeout values.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\ud83d\udd11-sip-authentication-parameters\">\ud83d\udd11 SIP Authentication Parameters<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">\u2699\ufe0f Parameter Name<\/th><th class=\"has-text-align-left\" data-align=\"left\">\ud83d\udcca Default<\/th><th class=\"has-text-align-left\" data-align=\"left\">\ud83d\udcdd Description<\/th><th class=\"has-text-align-left\" data-align=\"left\">\ud83d\udcd6 Page<\/th><\/tr><\/thead><tbody><tr><td><strong>SS_SIP_AUTHENTICATION_CODE<\/strong><\/td><td>&#8211;<\/td><td>SIP authentication code for gateway registration<\/td><td>230<\/td><\/tr><tr><td><strong>SS_SIP_AUTHENTICATION_REALM<\/strong><\/td><td>&#8211;<\/td><td>SIP authentication realm for digest authentication<\/td><td>230<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\ud83d\udce1-nat-keep-alive-parameters\">\ud83d\udce1 NAT Keep-Alive Parameters<\/h3>\n\n\n\n<p>NAT keep-alive parameters in the VOS3000 parameter description are critical for maintaining connectivity with endpoints behind NAT devices. These parameters control the message content, sending period, and batching behavior for UDP heartbeat messages that prevent NAT bindings from expiring.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">\u2699\ufe0f Parameter Name<\/th><th class=\"has-text-align-left\" data-align=\"left\">\ud83d\udcca Default<\/th><th class=\"has-text-align-left\" data-align=\"left\">\ud83d\udccf Range<\/th><th class=\"has-text-align-left\" data-align=\"left\">\ud83d\udcdd Description<\/th><\/tr><\/thead><tbody><tr><td><strong>SS_SIP_NAT_KEEP_ALIVE_MESSAGE<\/strong><\/td><td>HELLO<\/td><td>Text string<\/td><td>Content of NAT keep-alive UDP packet (empty = disabled)<\/td><\/tr><tr><td><strong>SS_SIP_NAT_KEEP_ALIVE_PERIOD<\/strong><\/td><td>30<\/td><td>10-86400 sec<\/td><td>Interval between keep-alive transmissions<\/td><\/tr><tr><td><strong>SS_SIP_NAT_KEEP_ALIVE_SEND_INTERVAL<\/strong><\/td><td>500<\/td><td>1-10000 ms<\/td><td>Delay between individual keep-alive packets in batch<\/td><\/tr><tr><td><strong>SS_SIP_NAT_KEEP_ALIVE_SEND_ONE_TIME<\/strong><\/td><td>3000<\/td><td>1-10000<\/td><td>Number of keep-alive packets sent per batch cycle<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u23f1\ufe0f-sip-session-timer-parameters\">\u23f1\ufe0f SIP Session Timer Parameters<\/h3>\n\n\n\n<p>Session timer parameters in the VOS3000 parameter description control the SIP session timer functionality that prevents &#8220;zombie calls&#8221; from persisting in the system. Based on RFC 4028, the session timer mechanism ensures that failed or hung calls are detected and cleaned up automatically.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">\u2699\ufe0f Parameter Name<\/th><th class=\"has-text-align-left\" data-align=\"left\">\ud83d\udcca Default<\/th><th class=\"has-text-align-left\" data-align=\"left\">\ud83d\udccf Range<\/th><th class=\"has-text-align-left\" data-align=\"left\">\ud83d\udcdd Description<\/th><\/tr><\/thead><tbody><tr><td><strong>SS_SIP_SESSION_TTL<\/strong><\/td><td>600<\/td><td>60-86400 sec<\/td><td>Detecting SIP connected status interval (Session-Expires)<\/td><\/tr><tr><td><strong>SS_SIP_SESSION_UPDATE_SEGMENT<\/strong><\/td><td>2<\/td><td>2-10<\/td><td>Divisor for refresh interval calculation (TTL\/segment)<\/td><\/tr><tr><td><strong>SS_SIP_SESSION_MIN_SE<\/strong><\/td><td>90<\/td><td>90-3600 sec<\/td><td>Minimum session expires value per RFC 4028<\/td><\/tr><tr><td><strong>SS_SIP_NO_TIMER_REINVITE_INTERVAL<\/strong><\/td><td>7200<\/td><td>0-86400 sec<\/td><td>Maximum call duration for non-timer endpoints<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\ud83c\udf9b\ufe0f-softswitch-system-parameters-in-vos-3000-parameter-description\">\ud83c\udf9b\ufe0f Softswitch System Parameters in VOS3000 Parameter Description<\/h2>\n\n\n\n<p>Reference: VOS3000 2.1.9.07 Manual, Section 4.3.5.2 (Pages 237-239)<\/p>\n\n\n\n<p>Softswitch system parameters control core softswitch functionality including media handling, call processing, gateway management, and blacklist\/whitelist behavior. These parameters affect how the softswitch processes calls and interacts with gateways and endpoints.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\ud83c\udfac-media-and-call-processing-parameters\">\ud83c\udfac Media and Call Processing Parameters<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">\u2699\ufe0f Parameter Name<\/th><th class=\"has-text-align-left\" data-align=\"left\">\ud83d\udcca Default<\/th><th class=\"has-text-align-left\" data-align=\"left\">\ud83d\udcdd Description<\/th><th class=\"has-text-align-left\" data-align=\"left\">\ud83d\udcd6 Page<\/th><\/tr><\/thead><tbody><tr><td><strong>SS_MEDIA_PROXY_MODE<\/strong><\/td><td>0<\/td><td>Media proxy mode (0=disabled, 1=enabled)<\/td><td>237<\/td><\/tr><tr><td><strong>SS_MEDIA_PROXY_PORT_RANGE<\/strong><\/td><td>40000,59999<\/td><td>Port range for media proxy RTP traffic<\/td><td>237<\/td><\/tr><tr><td><strong>SS_MAX_CALL_DURATION<\/strong><\/td><td>0<\/td><td>Maximum call duration in seconds (0=unlimited)<\/td><td>237<\/td><\/tr><tr><td><strong>SS_ENDPOINT_EXPIRE<\/strong><\/td><td>3600<\/td><td>Terminal registration expiry time in seconds<\/td><td>237<\/td><\/tr><tr><td><strong>SS_GATEWAY_ASR_RESERVE_TIME<\/strong><\/td><td>600<\/td><td>ASR reserve time for gateway in seconds<\/td><td>238<\/td><\/tr><tr><td><strong>SS_GATEWAY_ACD_RESERVE_TIME<\/strong><\/td><td>600<\/td><td>ACD reserve time for gateway in seconds<\/td><td>238<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\ud83d\udeab-dynamic-black-list-parameters\">\ud83d\udeab Dynamic Black List Parameters<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">\u2699\ufe0f Parameter Name<\/th><th class=\"has-text-align-left\" data-align=\"left\">\ud83d\udcca Default<\/th><th class=\"has-text-align-left\" data-align=\"left\">\ud83d\udcdd Description<\/th><\/tr><\/thead><tbody><tr><td><strong>SS_BLACK_LIST_CALLER_MALICIOUS_CALL_LIMIT<\/strong><\/td><td>1000<\/td><td>Max calls triggering malicious call blocking<\/td><\/tr><tr><td><strong>SS_BLACK_LIST_CALLER_MALICIOUS_CALL_EXPIRE<\/strong><\/td><td>3600<\/td><td>Duration for malicious call block in seconds<\/td><\/tr><tr><td><strong>SS_BLACK_LIST_NO_ANSWER_LIMIT<\/strong><\/td><td>100<\/td><td>Consecutive no-answer calls triggering block<\/td><\/tr><tr><td><strong>SS_BLACK_LIST_NO_ANSWER_EXPIRE<\/strong><\/td><td>3600<\/td><td>Duration for no-answer block in seconds<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\ud83c\udfb5-audio-service-parameters-in-vos-3000-parameter-description\">\ud83c\udfb5 Audio Service Parameters in VOS3000 Parameter Description<\/h2>\n\n\n\n<p>Reference: VOS3000 2.1.9.07 Manual, Section 4.3.5.3 (Pages 239-241)<\/p>\n\n\n\n<p>Audio service parameters control the IVR (Interactive Voice Response) system, voicemail functionality, callback services, and other value-added audio features in VOS3000. These parameters determine codec priorities, language settings, timeout values, and session behavior for audio services.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">\u2699\ufe0f Parameter Name<\/th><th class=\"has-text-align-left\" data-align=\"left\">\ud83d\udcca Default<\/th><th class=\"has-text-align-left\" data-align=\"left\">\ud83d\udcdd Description<\/th><th class=\"has-text-align-left\" data-align=\"left\">\ud83d\udcd6 Page<\/th><\/tr><\/thead><tbody><tr><td><strong>IVR_CODEC_PRIORITY<\/strong><\/td><td>G.711A,G.711U,G.729,G.723<\/td><td>Codec priority for IVR media<\/td><td>239<\/td><\/tr><tr><td><strong>IVR_DEFAULT_LANGUAGE<\/strong><\/td><td>en<\/td><td>Default language for IVR prompts<\/td><td>239<\/td><\/tr><tr><td><strong>IVR_MEDIA_CHECK_TIME_OUT<\/strong><\/td><td>3000<\/td><td>Media check timeout in milliseconds<\/td><td>240<\/td><\/tr><tr><td><strong>IVR_RINGING_TIMEOUT<\/strong><\/td><td>60<\/td><td>Ringing timeout in seconds<\/td><td>240<\/td><\/tr><tr><td><strong>IVR_SIP_SESSION_TTL<\/strong><\/td><td>600<\/td><td>SIP session TTL for IVR calls<\/td><td>240<\/td><\/tr><tr><td><strong>IVR_VOICEMAIL_MAX_DURATION<\/strong><\/td><td>120<\/td><td>Maximum voicemail duration in seconds<\/td><td>241<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u2699\ufe0f-vos-3000-parameter-description-best-practices\">\u2699\ufe0f VOS3000 Parameter Description Best Practices<\/h2>\n\n\n\n<p>Implementing effective VOS3000 parameter description management requires adherence to established best practices that minimize risk and ensure system stability. The following recommendations are derived from extensive deployment experience and reflect industry-standard approaches to configuration management.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\ud83d\udccb-change-management-recommendations\">\ud83d\udccb Change Management Recommendations<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Document current settings:<\/strong> Before making any changes, record the current parameter value and description for rollback reference.<\/li>\n\n\n\n<li><strong>Research parameter function:<\/strong> Review the parameter description in the interface and consult the VOS3000 manual to fully understand the parameter&#8217;s purpose.<\/li>\n\n\n\n<li><strong>Test before production:<\/strong> Always test parameter changes in a non-production environment before applying to production systems.<\/li>\n\n\n\n<li><strong>Apply changes during maintenance windows:<\/strong> Plan parameter changes during periods when temporary service interruption is acceptable.<\/li>\n\n\n\n<li><strong>Verify after changes:<\/strong> Confirm that parameter changes produce the expected behavior and do not cause unintended side effects.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\ud83d\udd27-parameter-optimization-tips\">\ud83d\udd27 Parameter Optimization Tips<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">\ud83c\udfe2 Scenario<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u23f1\ufe0f SESSION_TTL<\/th><th class=\"has-text-align-left\" data-align=\"left\">\ud83d\udce1 NAT_PERIOD<\/th><th class=\"has-text-align-left\" data-align=\"left\">\ud83d\udeab MAX_DURATION<\/th><\/tr><\/thead><tbody><tr><td><strong>Standard VoIP Wholesale<\/strong><\/td><td>600 (10 min)<\/td><td>30 sec<\/td><td>0 (unlimited)<\/td><\/tr><tr><td><strong>Call Center Operations<\/strong><\/td><td>900 (15 min)<\/td><td>20 sec<\/td><td>14400 (4 hrs)<\/td><\/tr><tr><td><strong>Mobile\/Unstable Networks<\/strong><\/td><td>300 (5 min)<\/td><td>15 sec<\/td><td>3600 (1 hr)<\/td><\/tr><tr><td><strong>Enterprise PBX<\/strong><\/td><td>1200 (20 min)<\/td><td>30 sec<\/td><td>28800 (8 hrs)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\ud83d\udcb0-vos-3000-installation-and-support-services\">\ud83d\udcb0 VOS3000 Installation and Support Services<\/h2>\n\n\n\n<p><strong>Need professional help with VOS3000 parameter description configuration?<\/strong> Our team provides comprehensive VOS3000 services including installation, configuration, and ongoing technical support.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">\ud83d\udce6 Service<\/th><th class=\"has-text-align-left\" data-align=\"left\">\ud83d\udcdd Description<\/th><th class=\"has-text-align-left\" data-align=\"left\">\ud83d\udcbc Includes<\/th><\/tr><\/thead><tbody><tr><td><strong>VOS3000 Installation<\/strong><\/td><td>Complete server setup<\/td><td>OS, VOS3000, Database, Security<\/td><\/tr><tr><td><strong>Parameter Configuration<\/strong><\/td><td>Optimize for your environment<\/td><td>SIP, H323, Billing, Security tuning<\/td><\/tr><tr><td><strong>Technical Support<\/strong><\/td><td>24\/7 remote assistance<\/td><td>Troubleshooting, Debug, Analysis<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\ud83d\udcde <strong>Contact us for VOS3000:<\/strong> WhatsApp: <a href=\"https:\/\/wa.me\/8801911119966\" target=\"_blank\" rel=\"noreferrer noopener\">+8801911119966<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\ud83d\udd17-related-resources\">\ud83d\udd17 Related Resources<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\ud83d\udcd6 <a href=\"https:\/\/multahost.com\/blog\/vos3000-session-timer-sip-keep-alive-configuration-guide\/\" target=\"_blank\" rel=\"noreferrer noopener\">VOS3000 Session Timer Complete Guide<\/a><\/li>\n\n\n\n<li>\ud83d\udcd6 <a href=\"https:\/\/multahost.com\/blog\/sip-trunking-with-vos3000-sip-trunking-bd-iptsp-india-pri-landline-twillo-vos3000-setup-sip-register-vos3000-gk-register-gw-vos3000\/\" target=\"_blank\" rel=\"noreferrer noopener\">VOS3000 SIP Trunking Configuration<\/a><\/li>\n\n\n\n<li>\ud83d\udcd6 <a href=\"https:\/\/multahost.com\/blog\/vos3000-prefix-settings-rate-prefix-area-prefix-client-vendor-prefix-settings-in-vos3000-server-in-easy-ways\/\" target=\"_blank\" rel=\"noreferrer noopener\">VOS3000 Prefix Settings Guide<\/a><\/li>\n\n\n\n<li>\ud83d\udcd6 <a href=\"https:\/\/multahost.com\/blog\/illegal-call-in-vos3000-server-how-to-stop-illegal-call-is-it-important\/\" target=\"_blank\" rel=\"noreferrer noopener\">Stopping Illegal Calls in VOS3000<\/a><\/li>\n\n\n\n<li>\ud83d\udce5 <a href=\"https:\/\/vos3000.com\/downloads.php\" target=\"_blank\" rel=\"noreferrer noopener\">VOS3000 Downloads &#8211; Manual and Software<\/a><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u2753-frequently-asked-questions-about-vos-3000-parameter-description\">\u2753 Frequently Asked Questions about VOS3000 Parameter Description<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"what-is-the-most-important-vos-3000-parameter-description-for-billing-accuracy\">What is the most important VOS3000 parameter description for billing accuracy?<\/h3>\n\n\n\n<p>The SERVER_BILLING_FEE_PRECISION and SERVER_BILLING_FEE_UNIT parameters are critical for billing accuracy. These parameters control the decimal precision and billing unit for charge calculations. Configure these parameters according to your business requirements and regulatory requirements for billing precision.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"how-do-i-enable-nat-keep-alive-in-vos-3000-parameter-description\">How do I enable NAT keep-alive in VOS3000 parameter description?<\/h3>\n\n\n\n<p>To enable NAT keep-alive, set SS_SIP_NAT_KEEP_ALIVE_MESSAGE to a non-empty value (default is &#8220;HELLO&#8221;). If this parameter is empty, NAT keep-alive is disabled. Configure SS_SIP_NAT_KEEP_ALIVE_PERIOD to control the interval between keep-alive transmissions (default is 30 seconds).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"what-happens-if-i-set-ss-sip-session-ttl-too-low\">What happens if I set SS_SIP_SESSION_TTL too low?<\/h3>\n\n\n\n<p>Setting SS_SIP_SESSION_TTL too low (below 90 seconds) may cause frequent session refresh messages, increasing network traffic and potentially causing call quality issues. The minimum recommended value is 90 seconds as specified in RFC 4028. Values below this may trigger &#8220;422 Session Interval Too Small&#8221; errors from endpoints.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"how-do-i-disable-automatic-report-generation\">How do I disable automatic report generation?<\/h3>\n\n\n\n<p>To disable automatic generation of specific reports, set the corresponding SERVER_REPORT_ parameter to &#8220;Off&#8221; in the System Parameter interface. For example, to disable the Agent Income Report, set SERVER_REPORT_AGENT_INCOME to &#8220;Off&#8221;. Disabled reports can still be generated manually through the client interface.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"can-i-use-vos-3000-parameter-description-to-limit-maximum-call-duration\">Can I use VOS3000 parameter description to limit maximum call duration?<\/h3>\n\n\n\n<p>Yes, use the SS_MAX_CALL_DURATION parameter to limit the maximum call duration for all calls. Set the value in seconds (0 means unlimited). This parameter is useful for preventing runaway calls and controlling costs. Individual accounts may have additional duration limits configured in their settings.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"where-can-i-get-help-with-vos-3000-parameter-description-configuration\">Where can I get help with VOS3000 parameter description configuration?<\/h3>\n\n\n\n<p>MultaHost provides comprehensive technical support for VOS3000 parameter description configuration. Our experienced team can assist with parameter selection, configuration best practices, and troubleshooting. For immediate assistance, contact us via WhatsApp at <strong>+8801911119966<\/strong>. Additional resources are available at <a href=\"https:\/\/vos3000.com\/downloads.php\" target=\"_blank\" rel=\"noopener\">vos3000.com\/downloads.php<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\ud83d\udcde-get-expert-vos-3000-parameter-description-support\">\ud83d\udcde Get Expert VOS3000 Parameter Description Support<\/h2>\n\n\n\n<p>Need assistance configuring VOS3000 parameters or optimizing your softswitch performance? Our VOS3000 experts provide comprehensive support for parameter configuration, troubleshooting, and VoIP infrastructure optimization.<\/p>\n\n\n\n<p><strong>\ud83d\udcf1 WhatsApp: <a href=\"https:\/\/wa.me\/8801911119966\" target=\"_blank\" rel=\"noreferrer noopener\">+8801911119966<\/a><\/strong><\/p>\n\n\n\n<p>Contact us today for VOS3000 installation, configuration, and professional technical support services!<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\ud83d\udcde-need-call-center-setup-support\">\ud83d\udcde Need Professional VOS3000 Setup Support?<\/h2>\n\n\n\n<p>For professional VOS3000 installations and deployment, VOS3000 Server Rental Solution:<\/p>\n\n\n\n<p>\ud83d\udcf1 <strong>WhatsApp:<\/strong> <a href=\"https:\/\/wa.me\/8801911119966\" target=\"_blank\" rel=\"noopener\">+8801911119966<\/a><br>\ud83c\udf10 <strong>Website:<\/strong> <a href=\"https:\/\/www.vos3000.com\" target=\"_blank\" rel=\"noopener\">www.vos3000.com<\/a><br>\ud83c\udf10 <strong>Blog:<\/strong> <a href=\"https:\/\/multahost.com\/blog\">multahost.com\/blog<\/a><br>\ud83d\udce5 <strong>Downloads:<\/strong> <a href=\"https:\/\/www.vos3000.com\/downloads.php\" target=\"_blank\" rel=\"noopener\">VOS3000 Downloads<\/a><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><img data-recalc-dims=\"1\" height=\"540\" width=\"809\" decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" alt=\"VOS3000 parameter description, VOS3000 system parameter, VOS3000 data maintenance, VOS3000 data report, VOS3000 number management\" title=\"\" class=\"lazyload\" data-src=\"https:\/\/i0.wp.com\/multahost.com\/blog\/wp-content\/uploads\/2026\/04\/VOS3000-parameter-description-VOS3000-system-parameter-VOS3000-data-maintenance-VOS3000-data-report-VOS3000-number-management-6-1024x683.png?resize=809%2C540&#038;ssl=1\"><\/td><td><img data-recalc-dims=\"1\" height=\"540\" width=\"809\" decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" alt=\"VOS3000 parameter description, VOS3000 system parameter, VOS3000 data maintenance, VOS3000 data report, VOS3000 number management\" title=\"\" class=\"lazyload\" data-src=\"https:\/\/i0.wp.com\/multahost.com\/blog\/wp-content\/uploads\/2026\/04\/VOS3000-parameter-description-VOS3000-system-parameter-VOS3000-data-maintenance-VOS3000-data-report-VOS3000-number-management-6-1024x683.png?resize=809%2C540&#038;ssl=1\"><\/td><td><img data-recalc-dims=\"1\" height=\"540\" width=\"809\" decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" alt=\"VOS3000 parameter description, VOS3000 system parameter, VOS3000 data maintenance, VOS3000 data report, VOS3000 number management\" title=\"\" class=\"lazyload\" data-src=\"https:\/\/i0.wp.com\/multahost.com\/blog\/wp-content\/uploads\/2026\/04\/VOS3000-parameter-description-VOS3000-system-parameter-VOS3000-data-maintenance-VOS3000-data-report-VOS3000-number-management-6-1024x683.png?resize=809%2C540&#038;ssl=1\"><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>VOS3000 parameter description guide covering all server, softswitch, SIP, H323, and audio service parameters. Complete configuration reference for VoIP admins.<\/p>\n","protected":false},"author":1,"featured_media":2577,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[2,563,565,566],"tags":[5662,5670,5666,5648,5661,5669,1035,5668,5663,5664,5660,984,5657,5656,3128,5049,1403,931,1691,5176,916,3131,929,3134,913,966,1026,1575,5654,5156,5665,5658,5655,5667,935,3123,3124,5659,1379],"class_list":["post-2578","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-vos3000","category-vos3000-2-1-9-07","category-vos3000-21907","category-vos3000-21907-download","tag-h323-configuration","tag-nat-keep-alive-parameters","tag-parameter-tuning","tag-session-timer-parameters","tag-sip-configuration","tag-sip-timer-parameters","tag-softswitch-configuration","tag-softswitch-parameters-table","tag-telecom-configuration","tag-voip-administrator","tag-voip-parameters","tag-vos3000-2-1-9-07","tag-vos3000-alarm-parameters","tag-vos3000-audio-service-parameters","tag-vos3000-billing-parameters","tag-vos3000-cdr-parameters","tag-vos3000-codec","tag-vos3000-configuration","tag-vos3000-dtmf","tag-vos3000-expert","tag-vos3000-guide","tag-vos3000-h323-parameters","tag-vos3000-installation","tag-vos3000-ivr-parameters","tag-vos3000-manual","tag-vos3000-media-proxy","tag-vos3000-nat-traversal","tag-vos3000-optimization","tag-vos3000-parameter-description","tag-vos3000-parameters","tag-vos3000-reference-guide","tag-vos3000-security-parameters","tag-vos3000-server-parameters","tag-vos3000-settings","tag-vos3000-setup","tag-vos3000-sip-parameters","tag-vos3000-softswitch-parameters","tag-vos3000-system-configuration","tag-vos3000-troubleshooting"],"acf":[],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/multahost.com\/blog\/wp-content\/uploads\/2026\/04\/VOS3000-parameter-description-VOS3000-system-parameter-VOS3000-data-maintenance-VOS3000-data-report-VOS3000-number-management.png?fit=1536%2C1024&ssl=1?v=1775667503","jetpack-related-posts":[{"id":1632,"url":"https:\/\/multahost.com\/blog\/vos3000-system-parameters\/","url_meta":{"origin":2578,"position":0},"title":"VOS3000 System Parameters &amp; Timers: Important Guide","author":"king","date":"March 8, 2026","format":false,"excerpt":"VOS3000 system parameters explained: complete reference of softswitch timers, SIP\/H.323 settings, and performance tuning options to optimize your VoIP platform.","rel":"","context":"In &quot;VOS3000&quot;","block_context":{"text":"VOS3000","link":"https:\/\/multahost.com\/blog\/category\/vos3000\/"},"img":{"alt_text":"VOS3000 Installation, VOS3000 Server, VOS3000 SoftSwitch, VOS3000 Switch, VOS3000, VOS3000 Pricem VOS3000 Web, VOS3000 API, VOS3000 Rent, VOS3000 Manual, VOS3000 Downloads, VOS3000 VoIP, VOS3000 Carrier Switch, VOS3000, VOS3000 Login, VOS3000 Monitoring, VOS3000 Performance Metrics, VOS3000 Call Routing, VOS3000 Security, VOS3000 Web Manager, VOS3000 Versions, VOS3000 BillingVOS3000 Monitoring,VOS3000 Capacity, VOS3000 Billing System, VOS3000 License,VOS3000 Installation, VOS3000 Server, VOS3000 SoftSwitch, VOS3000 Switch, VOS3000, VOS3000 Pricem VOS3000 Web, VOS3000 API, VOS3000 Rent, VOS3000 Manual, VOS3000 Downloads, VOS3000 VoIP, VOS3000 Carrier Switch, VOS3000, VOS3000 Login, VOS3000 Monitoring, VOS3000 Performance Metrics, VOS3000 Call Routing, VOS3000 Security, VOS3000 Web Manager, VOS3000 Versions, VOS3000 BillingVOS3000 Monitoring,VOS3000 Capacity, VOS3000 Billing System, VOS3000 License, Mobile Apps for VOS3000, VOS3000 Mobile Apps, Mobile Apps, VOS3000 Apps, Android VOS3000, VOS3000 in IOS, Manual for VOS3000, VOS3000 Manual, Manual VOS3000, Reference Manual VOS3000, User Manual VOS3000, VOS\u5b89\u88c5, VOS3000 Security, VOS3000 \u6258\u7ba1, VOS3000 architecture, VOS3000 call termination, VOS3000 Data Maintenance, VOS3000 Disaster Recovery, VOS3000 System Parameters","src":"https:\/\/i0.wp.com\/multahost.com\/blog\/wp-content\/uploads\/2025\/09\/VOS3000-Offer-1-1024x683.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/multahost.com\/blog\/wp-content\/uploads\/2025\/09\/VOS3000-Offer-1-1024x683.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/multahost.com\/blog\/wp-content\/uploads\/2025\/09\/VOS3000-Offer-1-1024x683.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/multahost.com\/blog\/wp-content\/uploads\/2025\/09\/VOS3000-Offer-1-1024x683.png?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":2378,"url":"https:\/\/multahost.com\/blog\/vos3000-media-proxy\/","url_meta":{"origin":2578,"position":1},"title":"VOS3000 Media Proxy and System Parameters: Complete Important Configuration Reference","author":"king","date":"March 31, 2026","format":false,"excerpt":"Complete VOS3000 media proxy and system parameters configuration guide. Learn RTP port settings, SIP parameters, NAT traversal configuration, and performance tuning.","rel":"","context":"In &quot;VOS3000&quot;","block_context":{"text":"VOS3000","link":"https:\/\/multahost.com\/blog\/category\/vos3000\/"},"img":{"alt_text":"SIP ALG Problems, VOS3000 gateway configuration, VoIP Fraud Prevention, VOS3000 Media Proxy, VOS3000 Call Termination Reasons","src":"https:\/\/i0.wp.com\/multahost.com\/blog\/wp-content\/uploads\/2026\/03\/SIP-ALG-Problems-VOS3000-gateway-configuration-VoIP-Fraud-Prevention-VOS3000-Media-Proxy-VOS3000-Call-Termination-Reasons-3.png?fit=1200%2C535&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/multahost.com\/blog\/wp-content\/uploads\/2026\/03\/SIP-ALG-Problems-VOS3000-gateway-configuration-VoIP-Fraud-Prevention-VOS3000-Media-Proxy-VOS3000-Call-Termination-Reasons-3.png?fit=1200%2C535&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/multahost.com\/blog\/wp-content\/uploads\/2026\/03\/SIP-ALG-Problems-VOS3000-gateway-configuration-VoIP-Fraud-Prevention-VOS3000-Media-Proxy-VOS3000-Call-Termination-Reasons-3.png?fit=1200%2C535&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/multahost.com\/blog\/wp-content\/uploads\/2026\/03\/SIP-ALG-Problems-VOS3000-gateway-configuration-VoIP-Fraud-Prevention-VOS3000-Media-Proxy-VOS3000-Call-Termination-Reasons-3.png?fit=1200%2C535&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/multahost.com\/blog\/wp-content\/uploads\/2026\/03\/SIP-ALG-Problems-VOS3000-gateway-configuration-VoIP-Fraud-Prevention-VOS3000-Media-Proxy-VOS3000-Call-Termination-Reasons-3.png?fit=1200%2C535&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":3165,"url":"https:\/\/multahost.com\/blog\/vos3000-sip-publish-expire\/","url_meta":{"origin":2578,"position":2},"title":"VOS3000 SIP Publish Expire: Essential Gateway Concurrency Guide","author":"king","date":"April 21, 2026","format":false,"excerpt":"Master VOS3000 SIP publish expire with SS_SIP_PUBLISH_EXPIRE. 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