Harsha wrote:
> Hi All,
>
> I am implementing a SIP User Agent. And I would
> want to implement the following services in my
> SIP user agent:
>
> 1. Call Transfer
http://www.ietf.org/internet-drafts/draft-ietf-sip-refer-02.txt
http://search.ietf.org/internet-drafts/draft-ietf-sip-cc-transfer-05.txt
although other approaches are possible (such as using a b2bua); we try
not to standardize services in sip, only mechanisms for building a wide
array of services.
> 2. Call Forwarding (Call Forwarding on Busy, No Reply, Unconditional)
This is possible with baseline SIP, using proxy or redirection.
> 3. Call Hold
http://search.ietf.org/internet-drafts/draft-rosenberg-mmusic-sdp-offer-answer-00.txt
> 4. Call Waiting
This is a local implementation choice, requiring no standards.
-Jonathan R.
--
Jonathan D. Rosenberg, Ph.D. 72 Eagle Rock Avenue
Chief Scientist First Floor
dynamicsoft East Hanover, NJ 07936
[EMAIL PROTECTED] FAX: (973) 952-5050
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