Auto Discovery random timeouts

[bigdessert]

With the new Auto Discovery feature under sip trunks we are getting random timeouts that will not let calls complete when it happens.

In the logs we see this message.

4977, Error, SIP Server/Call Manager, 12294, 10/9/2019 9:51:05 AM, "Call or Registration to 15555555555@(Ln.10003@SIPTRUNK1) has failed. 0.0.0.0 replied: 503 Transport failure: no transports left to try; warning: No other DNS entries to try (7,10060); internal"

Any ideas?

 

[cobaltit]

If it's a supported provider then delete the trunk and re-add it to get the tested configuration. If you have a like of DIDs you can add a bogus trunk and then edit it to compare the settings to your current trunk.