Trunk Troubleshooting Guide
If your Trunk is successfully configured but calls are still failing, please confirm the following parameters:
1. Caller ID
Does your gateway or provider impose a specific Caller ID format or require a fixed number? If yes, ensure it matches their required pattern exactly.
2. Dialing Prefix
Check if you need to prefix outgoing calls with a certain code. Confirm if you need to dial 0, 00, 01, or 011 before the destination number.
3. Registration
Does the provider require SIP registration? If so, double-check your username and password combinations in the trunk settings.
4. Codecs
Ensure your system is using the codecs supported by your provider (e.g., G.711u/a, G.729).
Checklist for Gateway Side
Please also verify these settings directly with your gateway provider:
- i.IP Authentication: Confirm your Server IP Address is authorized to make calls and is correctly associated with your account.
- ii. Call Routing: Confirm that your local prefixes are allowed and that there are proper routes configured for them.