silenceSupp to "ON"

AhmedYassine

New Member
Sep 29, 2025
24
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3
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Hi,

How can I set "silenceSupp" to on instead of off? This parameter might be causing an issue with the SIP INVITE.

v=0
o=FreeSWITCH 1781749491 1781749492 IN IP4 172.16.67.154
s=FreeSWITCH
c=IN IP4 172.16.67.154
t=0 0
m=audio 24702 RTP/AVP 8 0 101
a=rtpmap:8 PCMA/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=silenceSuppoff - - - -
a=ptime:20
 
fixed with making :
In FusionPBX, go to Advanced → Variables or edit the sofia profile directly:
  1. Navigate to Status → SIP Profiles
  2. Edit the relevant profile (e.g., internal or external)
  3. Look for or add the variable: suppress-cng = false