There is none. If they insist on a contact format, then they would
simply not work with sipx, period. Karoo bridge also uses the contact
for states so count karoo out as an SBC option as well. Tony mentioned
he uses other SBC to rewrite the contact. You might want to try it
out. However I am sure it would cost you more to purchase an SBC than
to find another ITSP that is compliant to the spec.
On 12/08/2011 04:30 AM, Sven Evensen wrote:
They told me that the contact field for 100 Trying must contain the
pilot number, and that for outgoing INVITE, the from and contact must
be pilot number while PAI can be used for individual CLI.
So many ITSPs have different ways of identifying caller (for billing
purpose) and for presenting CLI. But this is the first time I have
heard of someone complaing about the 100 trying. The GW is
username/password authenticated, not IP. That often causes a bit more
hassle.
Any ideas how I can set the contact field as they wish?
Sven
On Wed, Dec 7, 2011 at 6:59 PM, Tony Graziano
<[email protected] <mailto:[email protected]>>
wrote:
You should see
sip/sdp with the invite, then 100 trying, then STATUS RINGING
with the contact /binding/uri/contact address all set as
"~~id~bridge@". All of that is the sipx system UA dependent stuff.
The TO: and FROM: would have be where you would find the phone
numbers.
then you should see RINGING and then MEDIA or whatever else
happens, like a BYE.
the contact field is for the call as it points back to sipx, I
would suggest there is not an issue with sipx, unless you can
perhaps provide better information as to why the ITSP says this is
somehow wrong.
On Wed, Dec 7, 2011 at 1:31 PM, Sven Evensen
<[email protected] <mailto:[email protected]>> wrote:
We are using a new ITSP where we are seeing the following on
sipx 4.4
INVITE comes in
100 Trying goes back
6 seconds later CANCEL comes in
The ITSP support says that the contact field in the 100 trying
is wrong. It is
<sip:[email protected]:5080>
while they want it to be the pilot number
<sip:[email protected]:5080>
I am not able to figure out how I can change this.
Regards
Sven
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