Subject: [Megaco] Multiple SDP's in Local and No Remote

From: "Ian Leighton" <[email-masked]>
Date: 18 Apr 2002 12:49:17 -0400

Hi All

I would like to get some clarification on the expected behaviour of an
MG if the MGC sends a request which includes multiple SDP's in the Local
descriptor and does not include a Remote descriptor. For example if an
MGC sends the following information and the MG is capable of supporting
both AAL1 and AAL2 (assume ReserveGroup and ReserveValue are false);

add=$ {
      L {
        v=0
        c=ATM $ $
        m=audio - AAL2/ITU 1
        v=0
        c=ATM $ $
        m=audio - AAL1/ITU 0
      }
    }

would the reply include

1) both SDP's or
2) only its preferred transport.

My assumption is 1) based on 3015 section 7.1.8 description that the MG
chooses based on a both local and remote. Since the remote is not
currently available the MG replies with what it can support and chooses
a single SDP once the remote descriptor is provided.

Any comments or clarifications would be appreciated.

Regards
Ian Leighton

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