[SIPForum-discussion] call on hold

[Bhaskar Reddy Chintam Reddy]

Hi All,

In case of B2B I don't think they are referring to Expires header or expires tag in Contact header, which are mentioned in RFC 3261.

These two (Expires Header and expires tag) have different purposes w.r.to INVITE and REGISTER and they will not talk about duration of the session. Also scope these two is limited to Transaction Stateful Proxy and Stateless Proxy, So we can't apply these to a Call stateful entity like B2B.

There is one timer called session timer (The Header name for this timer is 'Session-Expires' ) in RFC 4028, which meant for the duration of the session in case of B2B.

Rgds
Bhaskar Reddy,
Aricent , Bangalore.




________________________________
From: discussion-bounces at sipforum.org [mailto:discussion-bounces at sipforum.org] On Behalf Of Henry Pradeep
Sent: Friday, May 30, 2008 6:08 AM
To: ecembaa at gmail.com
Cc: discussion at sipforum.org
Subject: Re: [SIPForum-discussion] call on hold

They r referring to time in sip-expires tag for invite request(call hold). This expires time will have the maximum time for which session can exist before sending re-invite.

--
With Regards,
Henry Pradeep,
Tata Consultancy Services,
Tidel Park, Chennai.
henrypradeep at gmail.com<mailto:henrypradeep at gmail.com>

On Thu, May 29, 2008 at 11:06 PM, Mario <ecembaa at gmail.com<mailto:ecembaa at gmail.com>> wrote:
Hi,

Regarding email below, which SIP timer are you refering to?

Does anyone know which timer would be used in case of having an Acme
SBC (B2BUA) in the midle?

Thanks in advanced for your help,
Regards,
Mario



--------------------------------------------------------------------------------
From: discussion-bounces at sipforum.org<mailto:discussion-bounces at sipforum.org>
[mailto:discussion-bounces at sipforum.org<mailto:discussion-bounces at sipforum.org>] On Behalf Of fråmedrëlay
Sent: lunes, 26 de mayo de 2008 14:35
To: Shakthi; SIP
Subject: Re: [SIPForum-discussion] SIP: Call Hold


call on hold is a CA feature, anyways, we have session expires
parameter in SIP which decides the expiry time. If we do not get any
response within that persiod, SIP normally drop that calls.
So when we put a call on hold, we send an Invite with HOLD, I think
that has SIP expiry time. Check -
If need more help, please send me the Ethereal.

Sylvester
Bangalore, IND

Shakthi <shakthi_msc at yahoo.com<mailto:shakthi_msc at yahoo.com>> wrote:
Is there any time at which the call hold expires?

(or)

What is the maximum time value for call hold?


Thanx
-Shakthi
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Cheers p.sylvester |
------------------------------------------------------------------- *
mail me : prasanthsylvester at hotmail.com<mailto:prasanthsylvester at hotmail.com>

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