VOS3000 Routing Guide – Prefix Routing, LCR and Traffic Control Explained Important
Routing is one of the most critical functions of any VoIP softswitch. In wholesale VoIP operations, routing determines how calls are delivered to different carriers based on prefix rules, vendor priority, cost and traffic management policies.
The VOS3000 softswitch provides a powerful routing engine that allows telecom operators to control international call traffic efficiently using prefix routing, Least Cost Routing (LCR) and vendor priority rules.
This guide explains how VOS3000 routing works and how operators can configure routing rules to manage call traffic across multiple carriers.
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Table of Contents
What is Routing in VOS3000?
Routing in VOS3000 determines how outbound calls are forwarded to carriers, gateways or termination providers. The routing engine analyzes the dialed number and selects the appropriate route based on configured rules.
These routing rules allow operators to:
- Control international call traffic
- Select preferred carriers
- Apply least cost routing
- Implement backup routes
- Balance traffic between vendors
Wholesale operators typically connect multiple carriers to ensure redundancy and cost optimization.
Prefix Routing in VOS3000
Prefix routing is the primary routing mechanism used in VOS3000. Each country or destination is identified by a numeric prefix.
For example:
- 1 – United States
- 44 – United Kingdom
- 880 – Bangladesh
- 971 – United Arab Emirates
When a call is initiated, VOS3000 analyzes the dialed number and compares it with configured routing prefixes to determine the correct vendor route.
This allows operators to create routing rules such as:
- Route US traffic to Carrier A
- Route UK traffic to Carrier B
- Route Asia traffic to Carrier C
Vendor Routing and Priority
Wholesale operators typically connect multiple termination providers to maintain call quality and pricing flexibility.
VOS3000 allows administrators to assign priority levels to vendors. When a call matches a prefix rule, the system attempts to send the call to the vendor with the highest priority.
If the primary vendor fails, the system automatically switches to the next available route.
This process is known as failover routing.
Benefits include:
- Improved call completion rate
- Automatic failover protection
- Reduced call drops
- Better quality control
Least Cost Routing (LCR)
Least Cost Routing (LCR) is widely used in wholesale VoIP networks to minimize termination costs.
With LCR, the system automatically selects the vendor offering the lowest price for a particular prefix.
This feature allows operators to optimize profit margins while maintaining acceptable call quality.
Routing decisions may consider:
- Vendor pricing
- Call quality statistics
- ASR (Answer Seizure Ratio)
- ACD (Average Call Duration)
Traffic Balancing Between Carriers (VOS3000 Routing)
In large VoIP networks, distributing traffic between multiple vendors is essential to maintain network stability.
VOS3000 allows traffic to be balanced across multiple gateways or SIP trunks.
This prevents overloading a single carrier and helps maintain consistent call quality.
Traffic balancing strategies include:
- Priority routing
- Weighted routing
- Failover routing
Gateway and SIP Trunk Configuration (VOS3000 Routing)
To implement routing rules, operators must configure gateways or SIP trunks within the VOS3000 system.
These gateways represent external carriers or termination providers.
Typical configuration includes:
- SIP authentication
- IP based authorization
- codec configuration
- network parameters
Once gateways are configured, they can be used in routing tables.
Monitoring Call Traffic
VOS3000 provides real-time monitoring tools that allow operators to analyze traffic statistics.
Key metrics include:
- CPS (Calls Per Second)
- ASR
- ACD
- Call completion rate
These statistics help operators adjust routing rules to improve call quality and profitability.
Useful VOS3000 Resources
VOS3000 Client Download Center
VOS3000 Call Center Solution Guide
VOS3000 Manuals and Documentation
FAQ – VOS3000 Routing
What is prefix routing in VOS3000?
Prefix routing uses the dialed number prefix to determine which carrier or gateway should handle the call.
What is LCR routing?
Least Cost Routing selects the vendor with the lowest termination cost for a particular destination.
Can VOS3000 automatically switch vendors if a route fails?
Yes. VOS3000 supports failover routing which automatically switches to backup routes if the primary route fails.
How many vendors can be configured in VOS3000?
Multiple vendors can be configured depending on server capacity and routing requirements.
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