Call Telemetry for Cisco

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Policy Numbers and Tags ​

Numbers and Tags are fundamental components for matching calling and called parties in Call Telemetry policies. They provide flexible pattern matching and organizational capabilities for your call routing rules.

Numbers ​

Numbers are patterns used to match calling or called parties in rules, whitelists, and blacklists.

Number Types ​

Numbers can be configured as either:

  • Exact match - A specific number like 911, 8005551212, or +14155551234
  • Regular expression - A pattern match using regex
    • Example: ^[2-9]\d{2}[2-9]\d{6}$ matches any 10-digit US number
    • Example: \d{4} matches any 4-digit extension
    • Example: ^1?8(00|88|77|66|55|44|33)\d{7}$ matches toll-free numbers

Creating Numbers ​

When creating a number, you can tag it for organizational purposes and add comments for documentation.

Number Example

The system automatically adds audit information including the user who added the number and when.

Number Example

Common Pattern Examples ​

Emergency Numbers

  • Pattern: ^(911|988|112)$
  • Use: Whitelist critical emergency services

Internal Extensions

  • Pattern: ^\d{4}$
  • Use: Route 4-digit internal calls

International Blocking

  • Pattern: ^\+(?!1|1[2-9]\d{2})
  • Use: Block non-North American numbers

Tags ​

Tags are labels used to group numbers together for easier management. A single tag can be applied across multiple policy types.

Creating Tags ​

Tags support names and descriptions to document their purpose:

TIP

Use descriptive tag names to maintain clarity as your system grows.

Create Tag Example

Showing an Index of Tags

Tag Examples ​

Common tag strategies include:

  • Business-Partners - Trusted external numbers
  • Emergency-Services - Critical service numbers
  • Known-Spam - Confirmed spam sources
  • VIP-Customers - High-priority callers

Using Numbers and Tags ​

Numbers and Tags can be used throughout Call Telemetry:

Whitelists ​

  • Numbers and Tags can be used in Whitelists to always permit calls
  • Available at all license levels

Blacklists ​

  • Numbers and Tags can be used in Blacklists to block calls
  • Available at all license levels

Policy Rules ​

  • Numbers and Tags can be used in Rules to match calling or called numbers
  • Enable complex routing logic based on patterns
  • Available at all license levels

Best Practices ​

  1. Use specific patterns - Start with exact numbers, then expand to patterns
  2. Document your patterns - Use comments and descriptions
  3. Test thoroughly - Verify patterns match intended numbers
  4. Regular maintenance - Review and clean up unused patterns and tags

License Limitations ​

Community Edition

  • Limited to 10 Number Patterns total
  • Limited to 1 Tag
  • Suitable for small deployments

For unlimited patterns and tags, consider upgrading to Standard or Advanced licenses.