I have Asterisk 184.108.40.206 running on a Dell PowerEdge server with a Digium T1 card. Everything has worked well for years, now we are changing Telco providers to a Level3 SIP trunk. Everything works as expected except for a delay of 10 seconds immediately after the Dial command [09:25:33], before the Called response [09:25:43]. The Asterisk box is directly on the Level3 private cloud, and Level3 doesn’t see the SIP request come in for them until I show the Called response [09:25:43]. I don’t see this same delay when another SIP device like a phone is called.
[09:25:33] – Executing [91814449XXXX@unrestrictedInternational-L3:3] Dial(“SIP/9476-00000088”, “SIP/1814449XXXX@220.127.116.11,300”) in new stack
[09:25:33] == Using SIP RTP CoS mark 5
[09:25:43] – Called SIP/1814449XXXX@18.104.22.168
[09:25:45] – SIP/22.214.171.124-00000089 is ringing
[09:25:45] – SIP/126.96.36.199-00000089 is making progress passing it to SIP/9476-00000088
I’m sure this is just some setting setting on my end that I’m not familar with because of my lack of working with SIP trunks.