BYOC SIP Trunk from VoiP Issue
Dear VAPI Support Team,
I am seeking assistance to configure both outbound and inbound calls using my own SIP trunk (BYOC) with VAPI.ai to leverage my existing Yeastar PBX and avoid additional costs associated with Twilio. Additionally, I have encountered issues with call transfers when using a Twilio SIP trunk.
Issues:
Outbound Calls (BYOC):
• Remain in “queued” status with the error “sip gateway failed to connect.”
• Routed through VAPI.ai’s PSTN instead of my SIP trunk.
• No REGISTER or INVITE attempts visible on the Yeastar PBX.
Call Transfers (Twilio):
• Failed transfers from PSTN to SIP to PBX extensions.
Current Configuration:
BYOC SIP Trunk:
• Credential ID: [Credential ID]
• IP/Port: [IP]:[Port] (UDP/TCP)
• Authentication: [Username]/[Password]
• SIP Register Enabled: Yes (Domain: [Domain], Realm: [Realm])
• Associated Number: [PhoneNumber ID] (France regionality)
Steps Taken:
• Verified SIP and PBX settings and network connectivity (firewall open for VAPI.ai).
• No SIP traffic detected on the PBX.
Request:
• Assistance to route outbound calls through my BYOC SIP trunk as a priority.
• If BYOC is not feasible, help resolve call transfer issues with the Twilio SIP trunk.
• Guidance on any specific configurations or server settings required for handling calls within Europe, specifically from France to France.
Thank you for your support.
Best regards
I am seeking assistance to configure both outbound and inbound calls using my own SIP trunk (BYOC) with VAPI.ai to leverage my existing Yeastar PBX and avoid additional costs associated with Twilio. Additionally, I have encountered issues with call transfers when using a Twilio SIP trunk.
Issues:
Outbound Calls (BYOC):
• Remain in “queued” status with the error “sip gateway failed to connect.”
• Routed through VAPI.ai’s PSTN instead of my SIP trunk.
• No REGISTER or INVITE attempts visible on the Yeastar PBX.
Call Transfers (Twilio):
• Failed transfers from PSTN to SIP to PBX extensions.
Current Configuration:
BYOC SIP Trunk:
• Credential ID: [Credential ID]
• IP/Port: [IP]:[Port] (UDP/TCP)
• Authentication: [Username]/[Password]
• SIP Register Enabled: Yes (Domain: [Domain], Realm: [Realm])
• Associated Number: [PhoneNumber ID] (France regionality)
Steps Taken:
• Verified SIP and PBX settings and network connectivity (firewall open for VAPI.ai).
• No SIP traffic detected on the PBX.
Request:
• Assistance to route outbound calls through my BYOC SIP trunk as a priority.
• If BYOC is not feasible, help resolve call transfer issues with the Twilio SIP trunk.
• Guidance on any specific configurations or server settings required for handling calls within Europe, specifically from France to France.
Thank you for your support.
Best regards
