I tried
GET /channels/{channelid}/variable?variable=CHANNEL(pjsip,call-id)
But it responds with
"message": "Channel not in Stasis application"
Since I want to get the call-id for a channel not in stasis I guess that won’t
work. Similarly, I can’t force the channel through my own code in the
dialplan, so the PJSIP_HEADER function won’t work. So it looks like I’ll have
to upgrade my Asterisk test system to get the Call-ID from the ARI event. It
looks like it was added in Ast 16.
Out of curiosity, I see that call-id is returned in the “protocol_id” field of
channel data structure. However, since all channels in the same call must have
the same Call-ID, how can this data be associated with a channel? Wouldn’t it
have to be associated with a bridge? The Call-ID should not be available until
two legs are bridged (I think).
Brian
From: asterisk-users [mailto:[email protected]] On Behalf
Of Joshua C. Colp
Sent: Saturday, June 17, 2023 2:25 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
<[email protected]>
Subject: Re: [asterisk-users] Get SIP Call-ID from ARI
On Sat, Jun 17, 2023 at 2:55 PM TTT <[email protected] <mailto:[email protected]> >
wrote:
Based on postings it should be possible to get the SIP Call-ID header value
from the ARI. At what point is this value available ? As well, how do I
retrieve that value – something like
GET /channels/{channelId}/pjsip_header?key=Call-Id
But that doesn’t work.
'pjsip_header' is not a valid route. All possible routes are documented on the
wiki, if it's not there then it doesn't exist.
Instead you would use variable[1] to execute the PJSIP_HEADER dialplan
function[2] or a better way would be the CHANNEL dialplan function[3] such as:
GET /channels/{channelid}/variable?variable=CHANNEL(pjsip,call-id)
Though I haven't tested that.
Newer versions also include the protocol identifier (Call-ID) in the channel
ARI structure[4] which would be in events, or explicitly retrieved[5].
[1]
https://wiki.asterisk.org/wiki/display/AST/Asterisk+20+Channels+REST+API#Asterisk20ChannelsRESTAPI-getChannelVar
[2] https://wiki.asterisk.org/wiki/display/AST/Asterisk+20+Function_PJSIP_HEADER
[3] https://wiki.asterisk.org/wiki/display/AST/Asterisk+20+Function_CHANNEL
[4]
https://wiki.asterisk.org/wiki/display/AST/Asterisk+20+REST+Data+Models#Asterisk20RESTDataModels-Channel
[5]
https://wiki.asterisk.org/wiki/display/AST/Asterisk+20+Channels+REST+API#Asterisk20ChannelsRESTAPI-get
--
Joshua C. Colp
Asterisk Project Lead
Sangoma Technologies
Check us out at www.sangoma.com <http://www.sangoma.com> and www.asterisk.org
<http://www.asterisk.org>
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