Static in my Attic


#1

Hello,

6 POTS lines and 8 analog DID lines coming from the block --> AllenTel --> Modular Rhino FXO/FXS.

I just updated to * 1.2.7.1 and zaptel 1.2.5 (fresh install all around).

I am having an issue with static (kind of an above your head static heard more on the receiving end than the calling end.

Incoming POTS line calls, routed to User Y’s extension are totally clear.
Incoming DID line to User Y’s DID# gets the static
Outgoing calls out of zap are fine.

I just need a pointer on where to look for the source of this static.

~zapata.conf~
; Zapata telephony interface
;
; Configuration file

[trunkgroups]

[channels]

language=en
context=from-pstn
signalling=fxs_ks
rxwink=300 ; Atlas seems to use long (250ms) winks
;
; Whether or not to do distinctive ring detection on FXO lines
;
usedistinctiveringdetection=no
callerid=asreceived
usecallerid=yes
hidecallerid=no
callwaiting=yes
usecallingpres=yes
callwaitingcallerid=yes
threewaycalling=yes
transfer=yes
cancallforward=yes
callreturn=yes
echocancel=yes
echocancelwhenbridged=no
echotraining=yes
rxgain=1.0
txgain=1.0
group=0
callgroup=1
pickupgroup=1
immediate=no

;faxdetect=both
faxdetect=incoming
;faxdetect=outgoing
;faxdetect=no

;Rhino FXO ports on 1-8 for in/outgoing calls last two empty
signalling=fxs_ks
channel=> 1-6

;Rhino FXS ports for analog DID incoming calls
group=1
signalling=em
channel=> 9-16
~zapata.conf~end

Thanks for your time,
day