How can I see the registration string being sent to my trunk provider

[Vietyank (Dennis Gray)]

I have set up a chan_sip trunk for use with voip.ms. The outbound settings are:

username=127304_SANMIGUEL
type=peer
trustrpid=yes
sendrpid=yes
secret=
qualify=yes
nat=yes
insecure=invite
host=losangeles.voip.ms
fromuser=127304_SANMIGUEL
disallow=all
context=from-trunk
canreinvite=nonat
allow=ulaw

The incoming string is:

127304_SANMIGUEL:[email protected]:5060

The provider tells me that I am only sending the character ‘G’ in the initial INVITE so the registration is failing. Their support gave me a pcap file which doesn’t show this string anywhere in it so I’d like to know exactly how to determine what is being sent as a registration string. The support from voip.ms has not been of much help.

[lgaetz (Lorne Gaetz)]

Virtuous Signalling

Continuing from Hooking for fun and income This post is a very basic introduction to SIP with specific focus on SIP for FreePBX and Asterisk. I know SIP reasonably well, but do not consider myself an expert. I deal with SIP signalling issues almost every single work day, and what I know of SIP serves me well when I stay in my lane (the FreePBX ecosystem). SIP is not simple, but it’s not rocket science either. As is the case with most things, debugging SIP problems gets easier with experience. I…

[sorvani (Jared Busch)]

Did you use any special characters in your VoIP.ms sub account password?
That has my money for the cause of the problem.

[BlazeStudios (Tom Ray)]

@Vietyank

The provider tells me that I am only sending the character ‘G’ in the initial INVITE so the registration is failing.

Well I’d be concerned about this answer as an INVITE has nothing to do with REGISTER’s as they are completely different things. So are you sure that is what they said?

[Vietyank (Dennis Gray)]

This problem has been solved now. I am not sure why they were telling me that because I can see that I was authenticating correctly and registering to their server.