[Asterisk-Users] Echo sometimes with TDM40B / X100P only

[Robert Mann]

During calls using an extension off of the TDM40B out through a X100P I sometimes get a echo or cave sound if you will.  It is random sometimes I have it sometimes not.  Sometimes it starts with the beginning of a call sometimes you can be in the middle of a call and it starts.  It only happens on the extension off of the TDM40B the caller on the X100P (outside line) does not get the same echo.

My zapata.conf looks like.

[channels]
language                = en

; TDM40B
context                 = trusted
signalling              = fxo_ks
group                   = 2
channel                 => 3-6

; X100P #1
context                 = inbound-1
include                 => extensions
signalling              = fxs_ks
group                   = 1
callgroup               = 1
pickupgroup             = 1
usecallerid             = yes
callerid                = asreceived
hidecallerid            = no
callwaiting             = yes
callwaitingcallerid     = yes
threewaycalling         = yes
transfer                = yes
echocancel              = yes
echocancelwhenbridged   = yes
rxgain                  = 0.6
txgain                  = 0.6
immediate               = no
busydetect              = yes
callprogress            = yes
musiconhold             = random
channel                 => 1

# X100P #2
context                 = inbound-2
include                 => extensions
signalling              = fxs_ks
group                   = 1
callgroup               = 1
pickupgroup             = 1
usecallerid             = yes
callerid                = asreceived
hidecallerid            = no
callwaiting             = yes
callwaitingcallerid     = yes
threewaycalling         = yes
transfer                = yes
echocancel              = yes
echocancelwhenbridged   = yes
rxgain                  = 0.6
txgain                  = 0.6
immediate               = no
busydetect              = yes
callprogress            = yes
musiconhold             = random
channel                 => 2
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