Thanks Pix and Michele.
I also am thinking that this is not possible in BR-8.
But problem is that my boss is saying this can be done.
In siemens, initial codec is assigned by the BSC according to the preference of mobile which is sent on at the time of SETUP.
Mobile is requesting full rate speech version 1 even if we don’t configure any codec from mobile set of TEMS.
BSC can override the codec only at the time of radio & ABIS TCH congestion.
So why BSC is not allocating TCH for AMR in case of siemens?
In Flexi there is a parameter Initial AMR Codec Type which can be configured as follows
Priority to AMR
Priority to WB-AMR
Obey Codec list according to MSS.
Last one is default & so within siemens MSC, Flexi BSC is being able perform call setup.
What i want to say is that siemens BSC can ignore WB-AMR & can proceed with AMR or simple HR or FR.
Why not it is doing like that.
Waiting for reply.