[Serusers] Conferencing questions

[DDX66]

I have browsed the mailing lists for information
relating to conferencing and I still do not have any
authoritative answers to the following questions:

1) I realize that the SEMS has a conferencing module -
But from what I understand, each user who wants to
participate in a conference would be "dialing" a
specific conferencing URI and they would all be
bridged and conferencing can take place. Is this
correct?

2) A convenient and more realistic scenario is when I
am on a call with someone and I'd like to conference
in someone. Normally, I would put the first user on
hold, Dial a key sequence followed by the  phone
number of the person I'd like to conference in. Once
the person picks up, I can bring the other person
on-line and the conference can take place. 

What does one require to make this happen? From what I
read, the User Agents have to support this
functionality (mixing?). Can this be done via an ATA
or do I need IP Phones?  Which ATA/IP Phones  supports
this? Secondly, I assume I'd still require SEMS to act
as a media server? Is this correct? 

Finally, has someone ever implemented such a solution
and would someone be willing to share some thought
about it.

Thanks in advance


		
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