[Freeswitch-users] Trouble with P-Asserted-Identity header(s)

João Mesquita jmesquita at freeswitch.org
Sun Mar 14 11:14:14 PDT 2010


Or, I can shut-up and let the ppl who know about this stuff reply to your
email.

JM

2010/3/14 João Mesquita <jmesquita at freeswitch.org>

> Try doing this different. Set the effective_caller_id_number, remove the
> manual header insertion and bridge it differently.
>
> Something like this:
>
>             $num = "02222222";
>             $session->answer();
>             $session->setVariable("effective_caller_id_name", "The
> Redirector");
>             $session->setVariable("effective_caller_id_number", "
> 0123456789 <sip%3A0123456789 at q-loud.net>");
>             $session->execute("bridge", "{sip_from_uri=
> sip:01111111 at q-loud.net <sip%3A01111111 at q-loud.net>
> }sofia/gateway/mygateway/$num);
>
>
> /JM
>
>
> 2010/3/13 Roland Hänel <roland at haenel.me>
>
>>  Hello,
>>
>> I'm developing a very simple call-through application using FreeSWITCH,
>> but currently
>> I'm stuck because my provider requires me to send a 'P-Asserted-Identity'
>> header
>> for outgoing calls if I want so signal an arbitrary caller ID in the
>> 'From' field.
>>
>> Setup is as follows:
>>    - a-leg comes in from an external gateway
>>    - dialplan dispatches the call to a perl handler script
>>    - perl script looks like this (simplified as much as possible for this
>> description):
>>
>>             $num = "02222222";
>>             $session->answer();
>>             $session->setVariable("effective_caller_id_name", "The
>> Redirector");
>>             $session->setVariable("sip_h_P-Asserted-Identity", '<
>> sip:0123456789 at q-loud.net <sip%3A0123456789 at q-loud.net>>');
>>             $session->execute("bridge", "sofia/gateway/mygateway/$num);
>>
>> The problem is now that FreeSWITCH correctly insertes a
>> P-Asserted-Identity header as
>> set in the perl script. But there is already an existing
>> P-Asserted-Identity header by default,
>> so I end up with two of them. This is the outgoing INVITE (b-leg):
>>
>>
>> INVITE sip:02222222 at x.x.x.x SIP/2.0
>> Via: SIP/2.0/UDP x.x.x.x:5080;rport;branch=z9hG4bKca3KS0cQj121N
>> Max-Forwards: 63
>> From: "The Redirector" <sip:01111111 at q-loud.net<sip%3A01111111 at q-loud.net>
>> >;tag=DBSvZ9NZc750g
>> To: <sip:02222222 at x.x.x.x>
>> Call-ID: ecc19564-a84d-122d-5aa2-00515343ab02
>> CSeq: 128071597 INVITE
>> Contact: <sip:gw+mygateway at x.x.x.x:5080;transport=udp;gw=mygateway>
>> User-Agent: FreeSWITCH-mod_sofia/1.0.trunk-16952M
>> Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, UPDATE, INFO, REGISTER,
>> REFER, NOTIFY
>> Supported: timer, precondition, path, replaces
>> Allow-Events: talk, refer
>> Privacy: none
>> Content-Type: application/sdp
>> Content-Disposition: session
>> Content-Length: 244
>> X-Port: 5060
>> X-FS-Support: update_display
>> P-Asserted-Identity: "The Redirector" <sip:01111111 at q-loud.net<sip%3A01111111 at q-loud.net>
>> >
>> P-Asserted-Identity: <sip:0123456789 at q-loud.net<sip%3A0123456789 at q-loud.net>
>> >
>>
>> [... sdp ...]
>>
>> Numbers are:
>>
>>     01111111       - the original caller (a-leg & b-leg From:)
>>     02222222       - the number redirected to (b-leg To:)
>>     0123456789    - the number my provider needs in P-Asserted-Identity
>> ('redirector's number')
>>
>> So, the INVITE is correct, it includes my P-Asserted-Identity 0123456789
>> line, but unfortunately it already includes another P-Asserted-Identity
>> 011111111
>> line, and that breaks the setup at my provider.
>>
>> I really appreciate any help.
>>
>> Greetings,
>> Roland
>>
>> --
>> Roland Haenel
>> QSC AG - http://www.qsc.de
>>
>>
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>>
>>
>
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