Dial Rule Restrictions
📖 Introduction
Dial Rule Restrictions block specific number patterns. While Class of Service controls broad categories (international, premium), dial rules let you block specific patterns.
Examples:- Block all 1-900 premium numbers
- Block international to specific countries
- Block specific area codes
---
🎯 Common Use Cases
| Block Pattern | Purpose | |
|---|---|---|
1900 | Block 1-900 premium lines | |
011 | Block all international | |
01152 | Block calls to Mexico | |
1976 | Block pay-per-call services |
🖥️ Accessing the Module
Navigation:PBX → Class of Service → Dial Rule Restrictions
---
📝 Form Fields
| Field | Description | Example | |
|---|---|---|---|
| Name | Rule identifier | Block 900 Numbers | |
| Pattern | Number pattern to block | 1900 | |
| Action | Block or Allow | Block | |
| Message | Audio to play when blocked | This call cannot be completed | |
| Enabled | Rule is active | Yes |
Pattern Examples
| Pattern | Blocks | |
|---|---|---|
1900 | All 1-900 numbers | |
011 | All international | |
01152 | Mexico only | |
555 | Fictional/movie numbers |
🚀 Practical Example
Block 1-900 Premium Numbers
| Field | Value | |
|---|---|---|
| Name | Block Premium 900 | |
| Pattern | 1900NXXXXXX | |
| Action | Block | |
| Message | Premium rate calls are not permitted |
💡 Tips
WARNING
Test patterns carefully: A wrong pattern can block legitimate calls.TIP
Use specific patterns: More specific = fewer false positives.---
🔗 Related Modules
- Class of Services — Broader permission control
- Outbound Routes — Route patterns
---
← Previous: Authorization Codes | Next: Route Selections →*