23 Jun
2006
23 Jun
'06
6:32 p.m.
Javier,
reInvites would have to be generated by some dialog stateful component of the call.
Depending on your network setup, this could be either endpoints or some B2BUA in the
middle.
openSER is not dialog stateful (openSER is transaction stateful ) and thusly cannot
generate reInvites.
Hope this helps
T.R.
From: users-bounces(a)openser.org [mailto:users-bounces@openser.org] On Behalf Of Javier
Ramirez
Sent: Friday, June 23, 2006 11:28 AM
To: Bogdan-Andrei Iancu
Cc: users
Subject: Re: [Users] keep alive using RE-INVITE
Bogdan, I don't understand how to make this with openser.
but I understand the keepalive mechanism
can you help me?
best regards
Javier Ramirez
----- Original Message -----
From: Bogdan-Andrei Iancu <mailto:bogdan@voice-system.ro>
To: Javier Ramirez <mailto:jvr_78@yahoo.com.ar>
Sent: Wednesday, June 21, 2006 1:35 PM
Subject: Re: [Users] keep alive using RE-INVITE
Javier,
I guess the RFC3261 or google (SIP + reINVITE) are the best source for
looking into.
regards,
bogdan
Javier Ramirez wrote:
Bogdan,
I read that a lot of person use the RE-INVITE to keepalive the call
but I don´t understand this.
please, can you help me ?
best regards
Javier Ramirez
----- Original Message -----
*From:* Bogdan-Andrei Iancu <mailto:bogdan@voice-system.ro>
*To:* Javier Ramirez <mailto:jvr_78@yahoo.com.ar>
*Cc:* users(a)openser.org <mailto:users@openser.org>
*Sent:* Thursday, June 08, 2006 7:14 AM
*Subject:* Re: [Users] keep alive using RE-INVITE
Hi Javier,
this is quite impossible to do - by sending re-INVITEs from a middle
point, you will break the CSEQ consistency between the end points.
Within the dialog, the cseq must increase from message to message
- if
you send a re-invite to point A with cseq n+1, after a while point
B may
sent a request with the same cseq since it was not aware that some
party
in the middle changed the number.
the best way to do it is if you have a end2end keepalive mechanism as
Session-Timer.
regards,
bogdan
Javier Ramirez wrote:
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Hi !
I looking for a mechanism to keep alive, and I see that is used the
RE-INVITE, but
How to use the Re-INVITE to a keep alive mechanism ?
exist another way to implement another keep alive mechanism ?
best regards
Javier ramirez
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