Hi there
I'm trying to add add a Call-Info parameter to perform an auto-answer for phones that are not directly registered to FreeSWITCH (they are registered on a sipXecs server). None of the normal methods of auto-answer seem to work so I am attempting to copy the
method that sipXecs uses to force phones to auto-answer. Upon analysis of how sipXecs performs an auto-answer, I find the following information in the SIP headers:
Call-Info: <sip:7012@sipxpbx.bc.local;sipx-noroute=VoiceMail;sipx-userforward=false>;answer-after=0
The key here is the answer-after=0 part. What I've done in my dialplan is to add the following (In this example 7003 is initiating a call to a conference bridge which is then outcalling 7001):
<action application="set" data="sip_h_Call-Info=answer-after=0"/>
<action application="conference_set_auto_outcall" data="sofia/custom_dialplan/7001@sipxpbx.bc.local;sipx-noroute=VoiceMail;sipx-userforward=false"/>
However in analysis of the SIP messages I never see any Call-Info header being set, though FreeSWITCH processes the entry:
EXECUTE sofia/custom_dialplan/7003@sipxpbx.bc.local set(sip_h_Call-Info=answer-after=0)
2011-05-07 00:56:46.563506 [DEBUG] mod_dptools.c:1059 sofia/custom_dialplan/7003@sipxpbx.bc.local SET [sip_h_Call-Info]=[answer-after=0]
However as you can see in the following SIP message, the header just isn't there:
------------------------------------------------------------------------
INVITE sip:7001@sipxpbx.bc.local;sipx-noroute=VoiceMail;sipx-userforward=false SIP/2.0
Via: SIP/2.0/UDP 10.200.129.102;rport;branch=z9hG4bK7aF5c90Dmecce
Max-Forwards: 70
From: "FreeSWITCH" <
sip:0000000000@10.200.129.102>;tag=D3Q2t45cZvcar
To: <sip:7001@sipxpbx.bc.local;sipx-noroute=VoiceMail;sipx-userforward=false>
Call-ID: 308e7013-f311-122e-448b-463bb5d10d94
CSeq: 12037743 INVITE
Contact: <
sip:mod_sofia@10.200.129.102:5060>
User-Agent: FreeSWITCH-mod_sofia/1.0.head-git-bfd0ba9 2011-03-07 13-02-41 -0600
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, UPDATE, INFO, REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE
Supported: timer, precondition, path, replaces
Allow-Events: talk, hold, presence, dialog, line-seize, call-info, sla, include-session-description, presence.winfo, message-summary, refer
Content-Type: application/sdp
Content-Disposition: session
Content-Length: 239
X-FS-Support: update_display
Remote-Party-ID: "FreeSWITCH" <
sip:0000000000@10.200.129.102>;party=calling;screen=yes;privacy=off
v=0
o=FreeSWITCH 1304728354 1304728355 IN IP4 10.200.129.102
s=FreeSWITCH
c=IN IP4 10.200.129.102
t=0 0
m=audio 19452 RTP/AVP 9 0 8 98 10 101 13
a=rtpmap:98 SPEEX/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=ptime:20
------------------------------------------------------------------------
Thanks for your help :-)