HMR to delete b bandwidth before m SDP line

Hi Fellows,

I hope you are ok,

I would like someone can help to me know if exist any way to delete the b bandwidth attribute in the SDP that are before the m line. I was trying with the following HMR and it is working fine deleting the "b" after the m audio sdp attribute, but is not deleting that "b" are before the m line.

v=0

o=- 554692024 1842089282 IN IP4 10.10.10.10

s=-

c=IN IP4 0.0.0.0

b=AS:30

b=RR:1125

b=RS:375

t=0 0

m=audio 0 RTP/AVP 105 101 102

b=AS:30

b=RR:1125

b=RS:375

a=rtpmap:105 AMR/8000/1

a=fmtp:105 mode-change-capability=2;max-red=0