[SR-Users] SIP 480 - Service unvailable

[Alex Balashov]

Hello,

It's just a guess, but I think most SIP providers aren't going to like 
the all-zeroes Caller ID/ANI that you're sending here:

    Contact: <sip:0000000000 at 1.22.216.96:35465;transport=UDP>

This is especially true since their routing is influenced by CLID, due 
to the possibility of intra/inter-jurisdictional rate differences.

-- 
Alex Balashov - Principal
Evariste Systems LLC
235 E Ponce de Leon Ave
Suite 106
Decatur, GA 30030
United States
Tel: +1-678-954-0670
Web: http://www.evaristesys.com/, http://www.alexbalashov.com/