Megaco codec negotiation

Hi All,

I'm a fresher in Megaco area.
I have some doubt regarding codec negotiation for audio and image in the following scenario-

Firstly there is negotiation of audio codec.
And after successful audio negotiation , there is a modify command to one of the termination from MGC
that contains image in local (L{image}) and an empty remote (R{})
can anyone please tell what should be the expected behaviour of MG?
following is the pdu--


!/1 [192.168.0.203]:2944 T=347{C=2{MF=eph3{M{O{MO=IN},L{v=0
c=IN IP4 $
a=ptime:10
m=image $ udptl t38
},R{}}}}}

and after this transaction ,if MGC send the folllwing

!/1 [192.168.0.203]:2944 T=347{C=2{MF=eph3{M{O{MO=IN},L{v=0
c=IN IP4 $
a=ptime:10
m=audio $ RTP/AVP 8
},R{}}}

then what should be the reply of MG?

Any information will be appreciated!

Thanks & Regards,
Rudra Pratap Singh



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