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Callee Rewrite Rule/Prefix Conversion/Clients – Vendor Prefix Settings in VOS3000! Easy Solution

October 11, 2019March 10, 2026 king

Callee Rewrite Rule/Prefix Conversion/Clients – Vendor Prefix Settings in VOS3000! Easy Solution

Table of Contents

Hello all,

This is actually very simple task but many people ask me always from where we will change prefix where client sending one and we need to send another prefix to vendor in VOS3000

Please always remember your clients sending prefix must available be in rate management or calls will not hit till routing gw.

From routing gw- go to edit and then 2nd tab and then last tab callee Rewrite rule where need to use clients sending prefix and vendor prefix

Initial prefix: clients sending prefix (4491-sample image)

Destination prefix: vendor given prefix (807791-sample image)

Callee Rewrite Rule in VOS3000

Please see the image for understand easily. still if you have confusion you can download full manual from vos3000.com website and get a proper idea about it. or you can also knock us for more info

Please knock me in whatsapp for more help: +8801911119966

Thanks

visit this link http://www.vos3000.com

VOS3000 Download & Manual – Official Clients, Documentation and Guides

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SIP Trunking with VOS3000, SIP Trunking BD IPTSP, INDIA PRI LANDLINE, TWILLO VOS3000 Setup, SIP Register VOS3000, GK Register GW VOS3000!

October 6, 2019January 16, 2026 king

SIP Trunking with VOS3000, SIP Trunking BD IPTSP, INDIA PRI LANDLINE, TWILLO VOS3000 Setup, SIP Register VOS3000, GK Register GW VOS3000!

Hello all,

After long time i an writing again, due to time shortage now a days its hard for me to get idle time for blog writing.

Many clients and friends asked me for sip trunking solution through vos3000, its very easy in VOS3000 2.1.6.0 version. Sip trunking seems very popular now a days, many people want to use sip login to send calls. This can be done from VOS3000 from Registration management. You can login to any of your sip user via sip trunking with ip or domain name. And you can send calls in those sip login accounts from your vos3000.

See the images above from where you can login SIP trunking.

See the images where you can see one GW is registered as SIP GW.

See the image which from Gateway Status.

Please knock me in whatsapp: +8801911119966 for more details & help.

Thanks

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VOS3000 PIN Test/SIP Account/VOS3000 Call Test!

July 20, 2019March 10, 2026 king

VOS3000 PIN Test/SIP Account/VOS3000 Call Test!

Hello all,

This is very simple task but still many clients do not know about it. Vos3000 is mainly for wholesale ip2ip traffic, still sometime need to test calls manually. So many people need it. Vos3000 sip account or pin called “Phone Account”. This must be created under any Account, first you have to make one client and general account and under that you can make “Phone Account”. It will be a sip account and you can login from any sip client software. If you download in your pc must remember your sip port should be open in your country otherwise need to use vpn or you can use web sip client which is encrypted by default.

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This is one sip account called “Phone Account”

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Here we used microSip client software to login or vos3000 pin test, Now you can dial your required numbers to see if it works or not.

VOS3000 PIN Test

Here from “Data Query” “CDR” you can see what is the issue, in this server it shows “UnRegistered” – this happened because vendor gw or routing gw is not completed. You will see other errors if there is something wrong.

you have to download microsip open source free softphone for vos3000 connection test or call test from this link : https://www.microsip.org/downloads – or you can use any sip client for vos3000 pin test

Knock me whatsapp: +8801911119966 for anymore help

Thanks

Sim Blocking Reduction| VOS3000 Calls Blocking, Blacklist, Wholesale Traffic Block, Filter short/long caller, Filter Junk calls |VOS3000 Optimizations.

July 15, 2019July 15, 2019 king

Hello all,

Got many request from many clients and also associates that how to block wholesale traffic and how to prevent sim blocking! Honestly there is now way to avoid sim blocking 100% except few people telling lie for selling their softwares!

But there is few technique you can use to reduce sim blocking! Most of the clients from pakistan and African countries facing issues.

Please remember: This blog is written by only my own views & my own research, you can use it only to give a try.

1. Filter Wholesale Traffic – its also not 100% possible but can try few ways:

Block Numeric calls in VOS3000:

https://multahost.com/blog/block-numeric-calls-in-vos3000-filter-wholesale-calling-card-operator-traffic-in-easiest-way/

Block other codec traffic in VOS3000:

Block Mobile number based pin/Long pin/Caller in VOS3000:

Blacklist Junk Calls:

Blacklist/Filter bad calls:

Make your own whitelist/bind/allow only dialer calls – filter route:

2. Use accurate Encryption/VPN Solutions:

Use Latest VPN:

SBO/Bandwidth Optimization really needed?
Expense Money on real product:

3. Collect Sim Blocking Information:

4. …………

—— To be continued, this page will be updated regular and each point will be describe in details in different pages. I will update time to time as its not possible to write everything together. Need many kind optimization to make the sim life more higher and increase your business to avoid loss.

Please knock me direct in whatsapp for more updated info: +8801911119966

Block Numeric Calls in VOS3000 | Filter Wholesale/calling card/operator traffic in Easiest way!

July 15, 2019January 16, 2026 king

Block Numeric Calls in VOS3000 | Filter Wholesale/calling card/operator traffic in Easiest way!

Hello,

Here i am writing how to block numeric calls, normally this isn’t 100% accurate to do as many retail dialer owner use number pins, by this way they will be blocked too but you can ask your client to use alpha pins as most of dialer or retail traffic owner do it now a days.

Normally Calling Card traffic or mobile operator number traffic have numbers as they want to show their cli, but trader sometime mixed this traffic with non cli routes!

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This is way you ALLOW number calls, this is not for non cli gateway owner, this is for people who want to send number calls to CLI route and alpha calls to NON CLI/TDM route. So they can make margin from those.

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This is the one for non cli vendor or gateway owner, who want to block number calls in their gateway. You can simply forbidden them by this way. By using * in VOS3000 is basically mean all numbers after that or anywhere if that number exists. So, by using it none of the number calls will hit in your gateway.

Most important: many bad/old VOS3000 have those options but not working, if you need working versions then must let us know, we can help you!

What will be the benefits:

1. You can be sure number calls are nit connecting. (Remember some clever people convert number to alpha and also codec to make their calls look like retail). But you can be safe at least 80%

2. Those types call will not hit gateway and your ports will not be blocked! So your ports will be 100% optimized and get more minutes!

3. Many more….

Please knock me directly in whatsapp: +8801911119966

Thanks

VOS3000 Download & Manual – Official Clients, Documentation and Guides

Faster Support for VOS3000, Easy Troubleshoot for problems!

July 2, 2019March 10, 2026 king1 Comment

Dear All,

When someone face issue at VOS3000 Server or any support required few things you need to prepare first. Without that its not possible to give instant support. I am sharing those serially,

Give your full server credentials, due to security we & also many server provider do not keep track or record of server passwords and no Backup Passwords kept by us. So share full IP, VOS3000 Client password, UUID code, Server root access.
Must keep Screen sharing software installed if you wish to see the solution or if you need basic training help. we suggest to use ANYDESK, due TEAM VIEWER have time limit for personal users to connect another pc. It get disconnected first, so use anydesk, here is the download link: https://anydesk.com/en/downloads
If you already done basic training and see calls not connected then please first go to “Data Query” then “CDR” then filter and see what error is showing in the “Termination Reason”. If we are unable to reach desk then this will help to sort out issues, Because most of the problems can be sorted after you tell or see what is the issues showing in “Termination Reason”. Avoid “Illegal Calls” that is normal, if you have questions about illegal calls read my other blog where i shared about “illegal calls” . So follow the images below.

cdr — from here you got to CDR.

cdr 2 — here you can see Termination reasons and easily you can identity your problems.

If you follow this way, support will be much much faster and it will be 80% less time consuming for both side.

Please knock us anytime in whatsapp for any kind technical issues: +8801911119966

Thanks

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VOS3000 2.1.6.0 Concurrent Call Load Test with MULTAHOST Dedicated Server!

June 26, 2019April 13, 2026 king

VOS3000 2.1.6.0 Concurrent Call Load Test with MULTAHOST Dedicated Server!

Hello All,

Table of Contents

This is one of very important part i am going to write about VOS3000 Server. Before VOS3000 Older versions mostly worked in 32 bit, so in case you used higher RAM but server got extra loaded, like vos3000 2.1.2.4, 2.1.3.2 and some 2.1.4.0 also works mainly 32 bit or custom way they worked on 64 bit server. VOS3000 2.1.6.0 built on pure 64 bit system – if it can be done with perfect Installation with neat and cleanly then you can run good volume calls.

We also suggested before to use Centos minimal versions, so no extra unnecessary apps get installed. This will make the Server little more faster and there are many teaks which need to apply. Yesterday we tested one server with 5000 call loads and works very well without any single issues – many people waste money on server config and use higher config server. If proper way and all teaks done in Operating system then you never need higher config and can save good amount money monthly based.

Concurrency VS RAM — Almost 5000 Concurrent Calls running in MULTAHOST Dedicated Server with VOS3000 2.1.6.0

If you see the Image you will able to see almost 5k cc calls running and Server RAM load is near about 4 GB only where 16GB Ram server is used, this is only happened due to correct OS Choose, Correctly tweaked, only required centos plugins installed, fully optimized and clean full featured real 64 bit VOS3000 2.1.6.0 Installed in Expert Hand.

Codec CC Traffic — CallCenter Traffic Running, Code is G711-GSM where more B/W used, MULTAHOST Server!

You can see in the image, G711 codec used which use high B/W, its running CallCenter Traffic, CLI CC traffic, so all call connected and very High CPS Hit Coming to the server which load normally many peoples server cant take. But our system works perfectly without any error, because of our expertise. You can see there is no Red mark or CDR on Queue as well. Our Tweaked server with clean installation server where other VOS pass hardtime for 2000 concurrent calls, our Server Can run 5000-8000 Concurrent Calls easily. So, if you are planning for high CPS CallCenter Traffic then let us know for help. VOS3000 2.1.6.00

Again it will save your monthly cost from Server! which is not small at all, so use exact required server. For choosing server OS or Server config please read our blog: https://multahost.com/blog/vos3000-server-configuration-choosevos3000-os-choose/

For any kind help or support please knock us in whatsapp: +8801911119966

visit vos3000 website for more : https://www.vos3000.com

Thanks

VOS3000 VoIP Softswitch – Complete Guide, Features, Installation & Security

VOS3000 Download & Manual – Official Clients, Documentation and Guides

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VOS3000 Prefix Settings, Rate Prefix, Area Prefix, Client/Vendor Prefix settings in VOS3000 Server in easy ways.

June 24, 2019January 16, 2026 king1 Comment

VOS3000 Prefix Settings, Rate Prefix, Area Prefix, Client/Vendor Prefix settings in VOS3000 Server in easy ways.

Hello all,

Many client become confused in prefix settings in VOS3000. Old vos3000 2.1.1.5, 2.1.2.0 and 2.1.2.4 there was only Area Prefix Options, where normally client used prefix plus country code together and they can able to write Area Details (Country Name or Description Manually). But Newer version its added one extra part which is rate prefix and you can’t edit area details – you have to do it from number management. Its because of A2Z route business.

So keep this in simple way use only Area Prefix, i always asked client to forget your vendor/provider prefix. In vos3000 settings everywhere use or remember only your prefix which you want to give clients or your own prefix only. So in rate management for both clients rate and vendor rate you have to use your own prefix. Also same way when you make routing gateway “GW Prefix” will be also your prefix, priority as per you want.

Now only one place you have to use vendor prefix is in Routing GW as per below image:

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See the image:

Initial Prefix : Your prefix which you set everywhere

Destinations Prefix : only this place you have to set vendor prefix.

Hope this will be remove your confusions for prefix settings in vos3000.

For anymore help or questions if you have then please feel free to knock me in whatsapp: +8801911119966

Thanks

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Illegal Call in VOS3000 Server! How to stop Illegal call, is it important?

June 23, 2019March 10, 2026 king2 Comments

Illegal Call in VOS3000 Server! How to stop Illegal call, is it important?

Hello,

Sometime we see Illegal Call in VOS3000 server CDR as termination reason. Actually illegal calls can be shown for few reason. If your clients ip not added and send calls at your server or you added wrong ip in mapping gateway or any previous users used this ip for voip purpose and his client still sending calls in this ip or some small retail hacker group try to login at your server by using some common pin number as sip user.

The thing is none of those call will be connected, so there is nothing to get worry! But yes, you can stop recording it – it will be recored in vos3000 cdr via mysql(do not copy our content, its written by multahost). So its important also to stop keeping record to keep server mysql data little more shorter.

Here i am attaching some screenshot where you can stop this illegal calls recording in vos3000 server.

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1. Go to “Operation Management” then “Softswitch Management” and edit.

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2. Go to System Parameter options and you will see options for “Record Illegal calls” – there you can see “On/Off”. Click and make it “off” , please do not make any major changes here without knowing that.

Illegal Call in VOS3000

3. See the closer look for it. you will see Illegal Call in VOS3000 record option and you can turn it off

VOS3000 Softswitch is very simple to use but there is some options or features written in different places which makes users little confused. So, i am trying to share FAQ in detail in multahost blog.

If you have anymore questions then please feel free to knock me in whatsapp: +8801911119966

visit vos3000 main website for many info : https://www.vos3000.com

Thanks

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VOS3000 软交换系统完整技术指南（安装、服务器、价格与安全）

VOS3000 Server Configuration Choose!VOS3000 OS Choose!

June 22, 2019 king1 Comment

Hello,

Greetings from our multahost blog! We are writing very silly matter but still many people have issues with choosing VOS3000 Server Configurations and also versions! Before i write details let me tell one short story.

“If you put one Fat Guy & one slim guy in Race then slim guy wining chances are always high!”

I am telling this because many people choose 64 GB Ram for VOS3000 Softswitch or higher config even they don’t require! Which is waste of money actually and datacenter earn from clients or Server provider make money. Many client have less traffic and use higher configure which isn’t actually needed.

Another thing is many people use old vos3000 2.1.2.0 and 2.1.2.4 which is actually run on 32 bit system, unless any datacenter help for kernel change for CentOs then only 3GB ram maximum in used. So even if you order 16 GB, 32 GB or higher Ram – most of its stay unused. In those server client can’t run much traffic as well even they have higher configuration in their VOS3000 Server. Its like you are not hungry and order many foods which you even can’t take away 🙂

VOS3000 2.1.6.0 is built for 64 bit, So 16 GB Ram with 8 Cores/16 Cores Server Can run 5000 Concurrent Calls easily. If traffic is regular traffic, not callcenter/missed-call/junk traffic.

VOS3000 2.1.6.0 mainly works best on Centos 6.4 x 64 bit – also works fine in CentOs 6.8 x 64 bit.

If you have IPMI access or IPKVM access for the server where you want to install VOS3000. Then my personal suggestions is use minimal versions of CentOs which is very small in size and not have many unwanted apps which actually not needed. Only VOS3000 Installer can install what program/apps they need for VOS3000. So, server will be load less and space will be more than expected.

Also do not forget to use correct repository file for downloading matching apps of that CentOs. This is also important for VOS3000 Server. These things will help vos3000 server more optimized and more smooth to run your traffic in VOS3000.

If you have anymore questions please feel free to knock me in whatsapp: +8801911119966

Thanks

VOS3000 Safe/Clean Client Software download. VOS3000 all versions Client/Manager download.

June 20, 2019June 20, 2019 king

Hello,

This is very much important writeup for vos3000 client/manager issues. Many people use client or manager from different download sites, which is not safe at all. All we know that any desktop based installer can be modified by using any kind extracting software/can be build again by any installer. In that case we have seen many people add their malware/virus/own scripts. So, hacker get all data from your vos3000 clients easily in his email and hack server accordingly. VOS3000 2.1.6.0 is much more secured in that case as that have mac based security as well. You will see many VOS3000 2.1.4.0 client shows malware or virus in anti virus software, that means that client/manager is completely unsafe.

So please download all VOS3000 2.1.2.4, VOS3000 2.1.4.0 , VOS3000 2.1.6.0 client/manager download for Free from authentic website.

Here is download link:

http://www.vos3000.com/downloads.php

Thanks, for any kind issues please knock us in whatsapp: +8801911119966

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VOS3000 Server SSH port Change Easy Commands!

June 20, 2019March 10, 2026 king1 Comment

VOS3000 Server SSH port Change Easy Commands!

Hello,

Due to security issue many people need to change ssh default ports. Non only for voip hacking issues, there are lots of spammer scan linux server ssh ports, so its good if you keep it changed to different ports. So i am sharing how you can change it easily.

Login to your vos3000 server at centos:

I am giving command serially:

# vi /etc/ssh/sshd_config

Or

# nano /etc/ssh/sshd_config

Some people like default editor “vi” is by default work for all linux. Some people like “nano” editor, so both command i shared earlier. Now you will see below image at your vos3000 server

Here you can see default vos3000 server port is 22. You just simply write “port” and space then your desired ports. In image you can see we used ports 34627. Then save it by using default commands of your editor. For “vi” command to write anything you need to press “i” then you can change anything and then “Esc” to complete and save command is :q!” and enter.

For nano simply you can change and after change you can save by “cntrl+x” and then “y” and enter.

After that for Centos 5.x and Centos 6.x server you need to use below command for restart the ssh service.

# service sshd restart

And for Centos 7.x server command is:

# systemctl restart ssh

VOS3000 2.1.1.5, 2.1.2.0, 2.1.2.4 mostly works in centos 5.x . VOS3000 2.1.2.4 can works in centos 6.x also but emp will not work properly and voice issue will be there. Newer VOS3000 2.1.4.0 or VOS3000 2.1.6.0 works in centos 6.x newer versions also. For compatibility of VOS3000 installation in linux server and which centos required for which version you can see my other post where i mentioned kernel version where emp matched easily. Also you can downgrade or upgrade kernel easily. Will post later about this. Keep tuned in our blog for it.

We also recommend ssh blocking by ip authentication based firewall. So it will be more secured for vos3000 server hacking which is common now a days.

Thanks again, please knock us in whatsapp: +8801911119966 for any kind vos3000 related troubleshoot.

visit for more: https://www.vos3000.com