[SIPForum-discussion] Registration timer

[sreekant nair]

Very Interesting. 

Is "registration timer /2" specified in any RFC? or just an industry accepted practice? I could not find any reference in RFC 3261.

Thanks in advance

Regards
Sreekant



----- Original Message ----
From: Boris vercher <boris.vercher at ilexia.com>
To: shakthi_msc at yahoo.com; SIP <discussion at sipforum.org>
Sent: Tuesday, August 5, 2008 11:52:28 AM
Subject: Re: [SIPForum-discussion] Registration timer

 
You have to re register at «  registration timer  / 2 »
even if a sip registrar have to support  “ registration timer  “ + 10s, before
clearing resgistration, if no register keep alive occur.
 
So re registration occurs before “ registration timers expires “.
Otherwise you can be unregistered during 1 or 2s ( for example )
 
When you reregister the timer is reset to the new value.
 
However when an UA send a register with “ registration timer  “,
the value that will be used, will be the timer “ registration expires “ sent
back by registrar. And not the original one sent by UA.
 
Boris 
 
From:discussion-bounces at sipforum.org
[mailto:discussion-bounces at sipforum.org] On Behalf Of Shakthi
Sent: mardi 5 août 2008 14:35
To: SIP
Subject: [SIPForum-discussion] Registration timer
 
During the SIP registration, an re-registration will occur only when the registration timer expires. My question is, "Will the 'expired timer' from the cache is cleared for every cycle before the re-registration occurs?"
 
 
 
Thanks in Advance
 
  -Shakthi 


      
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