Hi all

http://www.asterisk.org/
http://www.voip-info.org/wiki/view/Asterisk/

I think the above sites can help you as they say's

Asterisk provides Voicemail services with Directory, Call Conferencing, Interactive Voice Response, Call Queuing. It has support for three-way calling, caller ID services, ADSI, IAX, SIP, H.323 (as both client and gateway), MGCP (call manager only) and SCCP/Skinny.


Regards
Santosh



On 8/9/07, Donald Lee <baolovebao@gmail.com> wrote:
Hi amit:
 
    I think the following sites can help you:
    http://www.ietf.org/internet-drafts/draft-ietf-sipping-service-examples-13.txt
    http://www.ietf.org/rfc/rfc4579.txt

 
2007/8/9, amit <amit.v@pyronetworks.com>:
Hi All,


       How we can done conference in SIP ?

       We was already see in Tech-invite site but it not

       helpfully for us........

       Please tell what we do for conference......


Thanks in advance,

Amit Vijayvargiya

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