Issue Creating SIP Trunk Credential When Using FQDN
Dear Vapi Team,
I am a customer of the VoIP provider DIDlogic and am currently trying to use the “Bring Your SIP Trunk Carrier” integration. During the setup, I encountered an issue: when I enter the FQDN of the DIDlogic SIP gateways (sip.lax.didlogic.net or sip.nyc.didlogic.net), I receive the following error:
“Failed to create SIP trunk credential.”
However, if I replace the FQDN with the corresponding IPv4 address, the SIP trunk is created successfully without any errors.
Back in September 2025, I set up Vapi for another project and did not experience this issue. Could you please investigate and address this problem?
Thank you in advance for your assistance.
I am a customer of the VoIP provider DIDlogic and am currently trying to use the “Bring Your SIP Trunk Carrier” integration. During the setup, I encountered an issue: when I enter the FQDN of the DIDlogic SIP gateways (sip.lax.didlogic.net or sip.nyc.didlogic.net), I receive the following error:
“Failed to create SIP trunk credential.”
However, if I replace the FQDN with the corresponding IPv4 address, the SIP trunk is created successfully without any errors.
Back in September 2025, I set up Vapi for another project and did not experience this issue. Could you please investigate and address this problem?
Thank you in advance for your assistance.
