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Call routing is the most critical function of the VOS3000 softswitch. Every inbound or outbound VoIP call depends on routing logic to determine how the call is processed, billed, and delivered to the destination carrier or gateway. Incorrect routing configuration can result in call failures, poor quality, or financial loss.
This guide explains real VOS3000 routing behavior used by VoIP wholesalers, telecom operators, and carriers.
In VOS3000 call routing is the process of matching an incoming call to a routing rule that defines which outbound gateway should be used. Routing decisions are made in real time based on:
Routing is deeply integrated with authentication, billing, and security systems.
VOS3000 primarily uses prefix-based routing. When a call is received, the system compares the dialed number against routing prefixes and selects the longest matching prefix.
This allows operators to:
Prefix routing ensures accurate destination handling and precise billing.
Least Cost Routing (LCR) is a core feature of VOS3000. It enables automatic selection of the most cost-effective gateway while maintaining acceptable quality.
LCR decisions are influenced by:
This feature is essential for operators managing multiple upstream providers.
Each routing rule in VOS3000 can contain multiple gateways. Gateways are arranged by priority and weight. If the primary gateway fails or rejects the call, VOS3000 automatically attempts the next gateway.
This failover mechanism improves:
Routing decisions are influenced by security controls such as IP authentication, concurrent call limits, and credit limits. Calls failing security checks are rejected before routing is applied.
For security details, see VOS3000 Anti-Hack Guide.
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