Hi Jayesh,
For such scenario you do not need b2b at all. You can do it at signaling
level. How ?
- determine that the incoming call needs to be parked
- send the call to a media server to play some ringing via 183 early
media (call still not accepted); also push DB record to with the callid
+ user the call belongs to;
- if target user registers -> check in DB for parked calls -> if yes,
run a script to trigger the cancelling of that branch to media server
(see t_uac_cancel MI command
http://www.opensips.org/html/docs/modules/1.11.x/tm.html#id295912)
- original call will go into failure route (because of the canceling) ->
from there you can create a new branch to the newly registered user.
I haven't tried, but it should work :)
Regards,
Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.com
On 17.06.2014 12:57, Jayesh Nambiar wrote:
Hello All,
I was trying to explore an option of parking a call on opensips using
b2b modules with a trying or ringing response. More precisely, I was
trying to do something like this:
http://lists.opensips.org/pipermail/users/2010-October/014849.html
As soon as the call comes in, use b2b_logic to park the call. If the
called user is registered, route the call; else keep the caller parked
for 45 seconds, and within this duration if the called user registers,
raise a E_REGISTERED event.
Identify if there is a call parked for the user that just registered
and if yes route the call or else respond with 408 timeout to the caller.
I thought, it should be possible using the b2b modules and the event
interface that opensips got. Am I thinking in the right direction from
possibility perspective?? Can someone help me understand if this logic
can be implemented within the script??
Thanks in advance,
--- Jayesh
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