VOS3000 Dial Plan: Complete Number Transformation & Prefix Manipulation Guide

VOS3000 dial plan is a powerful feature that enables precise number transformation for routing, billing, and gateway interconnection scenarios. Understanding dial plan syntax and configuration is essential for VoIP operators who need to manipulate called numbers, handle international prefix variations, and ensure seamless interoperability between different networks and devices. This comprehensive guide covers all dial plan capabilities based on official VOS3000 2.1.9.07 documentation.

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Table of ContentsVOS3000 Dial Plan: Complete Number Transformation & Prefix Manipulation Guide Understanding VOS3000 Dial Plan Dial Plan Application Points Dial Plan Syntax and Wildcards Wildcard Characters Escape Characters for Length Constraints Complete Dial Plan Examples from Manual Dial Plan Transformation Table (VOS3000 Dial Plan) Longest Matching Principle (VOS3000 Dial Plan) Longest Matching Examples (VOS3000 Dial Plan) Multiple Substitution Targets Multiple Target Examples Dial Plan Configuration in VOS3000 Configuring Mapping Gateway Dial Plan (VOS3000 Dial Plan) Configuring Routing Gateway Dial Plan Common Dial Plan Use Cases International Prefix Handling (VOS3000 Dial Plan) Area Code Manipulation Emergency Number Routing Troubleshooting Dial Plan Issues Common Problems and Solutions Dial Plan Testing Procedure Related Resources (VOS3000 Dial Plan) Frequently Asked QuestionsWhat happens when multiple dial plan rules match?Can I use dial plan to change caller ID?How do I test if my dial plan is working correctly?Can dial plan affect billing?What’s the difference between gateway prefix and dial plan? Get Expert Help with VOS3000 Dial Plan Need Professional VOS3000 Setup Support?

Understanding VOS3000 Dial Plan

The dial plan in VOS3000 provides a flexible mechanism for transforming phone numbers before routing and billing. When a call is processed, VOS3000 can apply dial plan rules to modify the called number (callee) or calling number (caller) based on pattern matching and substitution rules.

Dial Plan Application Points

Reference: VOS3000 2.1.9.07 Manual, Section 4.3.1 (Page 219-220)

Dial Plan Syntax and Wildcards

Reference: VOS3000 2.1.9.07 Manual, Section 4.3.1 (Page 219-220)

Wildcard Characters

VOS3000 dial plan supports wildcard characters for flexible pattern matching:

Escape Characters for Length Constraints

VOS3000 dial plan supports escape characters to specify number length constraints:

Note: Use backslash before escape character (L, E, G) to remove its special meaning and match literally.

Complete Dial Plan Examples from Manual

Reference: VOS3000 2.1.9.07 Manual, Table 4-1 (Page 219-220)

Dial Plan Transformation Table (VOS3000 Dial Plan)

Longest Matching Principle (VOS3000 Dial Plan)

Reference: VOS3000 2.1.9.07 Manual, Section 4.3.1 (Page 220)

When multiple dial plan rules exist, VOS3000 uses the longest matching principle to select which rule to apply. This ensures that more specific patterns take precedence over generic ones.

Longest Matching Examples (VOS3000 Dial Plan)

Important: The pattern “*” has the lowest priority and will only be matched when no other pattern matches. This makes it useful as a “default” rule.

Multiple Substitution Targets

VOS3000 dial plan supports multiple substitution targets separated by semicolons (;). When “?” exists in the target, each “?” is replaced by a randomly generated digit.

Multiple Target Examples

Multiple Substitution Target Examples:
======================================

Target: 12345678;8008100-8008121;12345?78

This means randomly choose ONE of:
– 12345678 (constant)
– Any number from 8008100 to 8008121 (range)
– 12345?78 where ? is a random digit (pattern)

Result Examples:
– 12345678
– 8008105
– 8008119
– 12345178
– 12345878

Use Cases:
==========
1. Load balancing across multiple destination numbers
2. A/B testing different routes
3. Redundancy with fallback numbers
4. Random selection for pool allocation

Dial Plan Configuration in VOS3000

Configuring Mapping Gateway Dial Plan (VOS3000 Dial Plan)

Reference: VOS3000 2.1.9.07 Manual, Section 2.5.1.1 (Page 28-32)

Step-by-Step Mapping Gateway Dial Plan Configuration:
=====================================================

1. Navigate to:
Navigation > Operation management > Gateway operation > Routing gateway

2. Right-click gateway and select “Additional settings”

3. Find “Callee number transform” section:
– Callee number transform: Original prefix → Target prefix
– Multiple rules separated by comma

4. Example Configuration:
Original: 00
Target: (empty)

Effect: Remove 00 prefix from incoming calls

5. Apply changes and test

Example Scenarios:
==================

Scenario 1: International calls coming with 00 prefix
Need to route to gateway expecting numbers without 00
Solution: Original: 00, Target: (leave empty)

Scenario 2: Local calls coming without area code
Need to add area code for routing
Solution: Original: *, Target: 025* (adds 025 prefix to all)

Scenario 3: Convert mobile prefix
Solution: Original: 013, Target: 8613 (convert Chinese mobile format)

Configuring Routing Gateway Dial Plan

Reference: VOS3000 2.1.9.07 Manual, Section 2.5.1.1 (Page 32-39)

Common Dial Plan Use Cases

International Prefix Handling (VOS3000 Dial Plan)

Area Code Manipulation

Emergency Number Routing

Emergency Number Dial Plan Examples:
====================================

Scenario: Route emergency numbers to specific gateway

1. Emergency 911/112 routing:
Create routing gateway with prefix: 911,112
Dial plan on mapping gateway:
– Original: 911, Target: (empty – pass through)
– Original: 112, Target: 911 (convert 112 to 911)

2. Police emergency:
Original: 110
Target: (empty or specific routing number)

3. Ambulance/Medical:
Original: 120
Target: (routing destination)

Important Notes:
================
– Emergency numbers should have highest priority
– Use specific prefixes (not wildcards) for emergency routing
– Test thoroughly before production deployment

Troubleshooting Dial Plan Issues

Common Problems and Solutions

Dial Plan Testing Procedure

Dial Plan Testing Steps:
========================

1. Enable Debug Trace:
System > Debug trace > Check “On”

2. Make Test Call:
Place call with number to test

3. View Call Analysis:
CDR > Right-click failed call > Call analysis

4. Check Number Transformation:
– Look for “called number” before and after transformation
– Verify correct dial plan was applied

5. Check CDR:
– Verify “callee billing” shows correct number
– Compare with “callee access” for incoming number

6. Adjust if needed:
– Modify dial plan rules
– Re-test with new configuration

Related Resources (VOS3000 Dial Plan)

VOS3000 Callee Rewrite Rule and Prefix Conversion

VOS3000 Prefix Settings Guide

VOS3000 Call Routing Guide

SIP Trunking with VOS3000

VOS3000 Downloads

Frequently Asked Questions

What happens when multiple dial plan rules match?

VOS3000 applies the longest matching principle. The dial plan rule with the longest matching prefix is selected. For example, if you have rules for “0” and “010”, the number “01012345678” will match “010” because it’s longer. The “*” wildcard has the lowest priority.

Can I use dial plan to change caller ID?

Yes, VOS3000 supports caller number transformation in routing gateway settings. Configure “Caller number transform” in the routing gateway’s additional settings to modify the calling party number before sending to the downstream gateway.

How do I test if my dial plan is working correctly?

Enable debug trace in VOS3000, make a test call, then check the CDR and call analysis. The call analysis will show the number before and after transformation, confirming which dial plan rule was applied.

Can dial plan affect billing?

Yes, dial plan can affect billing if applied before the rate lookup. Mapping gateway dial plan transforms numbers before billing, while routing gateway dial plan transforms numbers after billing. Consider this when designing your number transformation strategy.

What’s the difference between gateway prefix and dial plan?

Gateway prefix is used for routing decisions – it determines which gateway handles the call. Dial plan transforms the actual number. Gateway prefix matching happens first for route selection, then dial plan transforms the number for the selected gateway.

Get Expert Help with VOS3000 Dial Plan

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