hi,
Thanks to focus on this topic!
I met a problem when I try to implement a conference using MGCP messages.
When a SIP INVITE from user A reach the MGC, it is converted to a CRCX and sent to
the conference server.Should I mark the users joining the same conference by using the
same call-id in CRCX(the call-id of each invite remain different)? and how can the MGC
know for which INVITE the coming response is?
Should it be associated just through the transation id?
Maybe my illustration is not clear enough ,here is the graph showing my question.
user A user B MGC conference server
| invite1 -> | |
| | | crcx A-> |
|---------|--------------|------------------|
| | | <-ack 1 |
| <-200 1 | |
|-------------------------------------------|
| | | |
| | invite2 -> | |
| | | crcx B-> |
|---------|--------------|------------------|
| | | <-ack 2 |
| | <-200 2 | |
|-------------------------------------------|
| | | |
Does this flow excutable? If it does ,By which means does the MGC know
ack 1 is for invite1 and ack2 is for invite2(should there be a table which
contain the mapping relationship between the call-id of invite and the
transaction-id
of crcx,or is there is a absolutely different way doing this ?)
Any comment will be appreciated!
Best Regards.
>I think it will be done by the CAll Agent which is controlloing a media
>gateway on which call is to be terminated, or by an application server which
>receives an INVITE fromCall Agent and has to create connection with a media
>server which supports MGCP.
>
>regards
>
>-----Original Message-----
>From: [EMAIL PROTECTED]
>[mailto:[EMAIL PROTECTED]]On Behalf Of feng zhang
>Sent: Sunday, September 22, 2002 5:41 PM
>To: [EMAIL PROTECTED]
>Subject: [Sip-implementors] SIP-MGCP
>
>
>Hi All,
>
> Who does the work to translate SIP to MGCP or MGCP to SIP?
>
> Can u give me some advicees or some experience or any information about
>it?
>
> Thanks very much!
>
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