Ranjit is correct, the INVITE triggers the session. Just to be clear, there
is no correlation between the two, so that the OPTIONS and INVITE need not
use the same Call-ID. The INVITE shouldn't carry any To tag returned in the
OPTIONS response.
-Jonathan R.
---
Jonathan D. Rosenberg, Ph.D. 72 Eagle Rock Ave.
Chief Scientist First Floor
dynamicsoft East Hanover, NJ 07936
[EMAIL PROTECTED] FAX: (973) 952-5050
http://www.jdrosen.net PHONE: (973) 952-5000
http://www.dynamicsoft.com
> -----Original Message-----
> From: Ranjit Avasarala [mailto:[EMAIL PROTECTED]]
> Sent: Monday, June 25, 2001 12:34 PM
> To: Anand Vasudevan; [EMAIL PROTECTED]
> Cc: Sunil Kumar T
> Subject: Re: [Sip-implementors] Query on OPTIONS
>
>
> see my comments inline ...
>
> Regards
> Ranjit
>
>
>
>
>
>
>
> ----- Original Message -----
> From: Anand Vasudevan <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Cc: Sunil Kumar T <[EMAIL PROTECTED]>
> Sent: Sunday, June 24, 2001 2:04 AM
> Subject: [Sip-implementors] Query on OPTIONS
>
>
> Hi,
> Assume UA1 sends an OPTIONS as the FIRST request to UA2 to query its
> capabilities even before sending INVITE.
>
> a) Can i assume the session between UA1 and UA2 has started
> with OPTIONS
> itself?Or,is it the INVITE(sent after OPTIONS) triggers the
> session between
> them?
>
> its always the INVITE which triggers the session
>
> b) In such case,will the UA1 make use of the same CallId as
> in OPTIONS, in
> its INVITE?
>
> c) Also,if UA2 had responded for OPTIONS with Tag t1 in its
> 'To'.Will the
> same To tag(t1) be used in following INVITE request?
>
> Thanks in advance,
> Anand
>
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