Providers don't have any issues with caller id's. We can even call from a single digit. 
And even if a sip account is not associated with a caller id (a number) rather its just a name (as skype id like xxx.yyy) when initiated a pstn call, the providers use local numbers (if ur gateway is in germany then the proivder will use a germany number) to call and the receiver will that local number.


On Tue, Apr 8, 2014 at 1:21 AM, Alex Balashov <abalashov@evaristesys.com> wrote:
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@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/


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