[SIPForum-techwg] Question about annexb=yes or no

[mike xu]

Hi all,

In RFC3555 section 4.1.9, it said "annexb: indicates that Annex B,
voice activity detection, is        used or preferred". Could somebody
explain this in more details?
Take an example, if
annexb=no
was received, does it mean that I should disable local side's silence
suppression (didn't send silence suppression frames)?

And if I send annexb=no in my INVITE's SDP, it means that my local
side's silence suppression was disabled and the callee should not send
silence suppression frames to me?

Thanks in advance,
Mike