Change Codec
sip-manipulation
name convertCodec
description changeG711toG729
mime-sdp-rule
name changeCodec
msg-type request
methods INVITE
action manipulate
comparison-type case-sensitive
match-value
new-value
sdp-media-rule
name change711to729
media-type audio
action manipulate
comparison-type case-sensitive
match-value
new-value
sdp-line-rule
name change711
type m
action replace
comparison-type pattern-rule
match-value ^(audio [0-9]{4,5}
RTP/AVP.*)( 0)(.*)$
new-value $1+” 18”+$3
sdp-line-rule
name stripAttr
type a
action delete
comparison-type pattern-rule
match-value ^rtpmap:0 PCMU/
.+$
new-value
sdp-line-rule
name addAttr
type a
action add
comparison-type boolean
match-value $change711to729.
$stripAttr
new-value rtpmap:18 G729/8000