Methods For Support of H.320/H.324

Tom-PT Taylor taylor at NORTELNETWORKS.COM
Tue Apr 27 07:40:19 EDT 1999

        -----Original Message-----
        From:   Callaghan, Robert [SMTP:Robert.Callaghan at ICN.SIEMENS.COM]
        Sent:   Monday, April 26, 1999 5:12 PM
        [[TomT]]  snip
> However, one major problem is only touched.  You stated the multi-DS0s may
> be established using multi-link procedure.  To the network, these appear
> as
> individual calls.  The network will route the call such that it reaches
> the
> specified endpoint.  The network has no concept of routing multiple
> independent calls by the same path.  Since the gateway is only part of
> network, by what means can it be determined that the interworking of H.320
> to H.323 will have all of the applicable DS0 connection at the same
> gateway?
> If they do not use the same gateway, how do the endpoints and gateways
> handle the connection?
         I agree that this is mysterious, but people must solve it now.
Thoughts of ISDN and wideband service go through my mind.  If it helps any,
I'll point out that we're really talking about an MCU rather than a Gateway
at this point.

> Another problem was not discussed.  If a H.320 connection arrives at the
> gateway, how does the gateway know that H.320 to H.323 interworking is
> required as opposed to the simple transport of the signal to another
> egress
> gateway?  As a corollary, how does the gateway know that the signal is not
> voice, and should be transported as 64Kbps clear?
        That's where the V.140 negotiation comes in.

> Bob
> ------------------------------------------------------------------
> Robert Callaghan
> Siemens Information & Communication Networks
> Tel: +1.561.997.3756    Fax: +1.561.997.3403
> Email:  Robert.Callaghan at
> ------------------------------------------------------------------

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