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...<--- Transmitting SIP request (483 bytes) to UDP:0.0.19.196:5060 ---> OPTIONS sip:64.2.142.93 at 5060 SIP/2.0 Via: SIP/2.0/UDP xxx.xxx.xx.xxx:5060;rport;branch=z9hG4bKPjcea63914-b8d1-483d-96db-11968abab704 From: <sip:e31d5809-f26a-4219-8365-70931428072b at xxx.xxx.xx.xxx>;tag=7cfab3ba-73de-4243-9967-d1e6a5e7b0b4 To: <sip:64.2.142.93 at 5060> Contact: <sip:e31d5809-f26a-4219-8365-70931428072b at xxx.xxx.xx.xxx:5060> Call-ID: 7ba766bf-363b-47d0-a388-62a58d1df88d CSeq: 33778 OPTIONS Max-Forwards: 70 User-Agent: Asterisk PBX 13.0.0 Content-Length: 0 [Dec 17 19:22:31] WARNI...

...that how it really is? Are you NATed? > OPTIONS sip:64.2.142.93 at 5060 SIP/2.0 > > Via: SIP/2.0/UDP > xxx.xxx.xx.xxx:5060;rport;branch=z9hG4bKPjcea63914-b8d1-483d-96db-11968abab704 > > From: <sip:e31d5809-f26a-4219-8365-70931428072b at xxx.xxx.xx.xxx > >;tag=7cfab3ba-73de-4243-9967-d1e6a5e7b0b4 > > To: <sip:64.2.142.93 at 5060> > > Contact: <sip:e31d5809-f26a-4219-8365-70931428072b at xxx.xxx.xx.xxx:5060> > > Call-ID: 7ba766bf-363b-47d0-a388-62a58d1df88d > > CSeq: 33778 OPTIONS > > Max-Forwards: 70 > > User-Agent: Aste...

I didn't use pjsip_wizard, I'm kind of crafting this by hand as I learn. I actually have a plain asterisk, and a FreePBX, system to help me learn. I sometimes create something in FreePBX to see what it does to the config files. So that's how I modelled my pjsip.X.conf files If I issue the command "pjsip show endpoint Twilio" it does show that outbound_auth=Twilio Does

Not sure why, but Vitelity changed the settings to IP based authentication on me. Here's the new sip.conf settings they sent me. type=friend dtmfmode=auto host=64.2.142.93 allow=all nat=yes canreinvite=no trustrpid=yes sendrpid=yes When I use these settings to originate calls using the sip.conf they sent me, everything works. Action: Originate ActionID: S8 Channel: