[Serusers] Bandwidth parameter modification (b:) from ser.cfg

["M. Victoria Peláez"]

Hi!

I am a beginner with SIP/SER systems. I have been having a look into 
ser.cfg, in order to modify some SDP parameters, for instance, 
fix_nated_sdp to change connection IP, and I have found enough 
information to do it. But, now, I am traying to change b parameter, but 
cannot find where to do it (Which module manage it?). I am also looking 
for a document with a description of all bandwidth types (CT, AS). Could 
you tell me something about this stuff, please?

Thank you very much in advance for your help.

I am very sorry if this is a very silly question!

Best regards,
Victoria