Fast Busy and Call Setup Failure
If you're experiencing issues where calls fail before connecting, you may encounter messages such as 'fast busy', 'reorder', 'cannot dial out', 'cannot receive', 'SIP error', or 'call rejected'. This issue is related to call setup failure and can be addressed by inspecting your routing and SIP responses.
Note: This issue is distinct from audio quality complaints. If you're experiencing only audio quality issues, please consult our other resources.
For more detailed information, explore the articles below.
Related Articles
Category
This topic falls under the VoIP Troubleshooting category.