Pues les comento no logro hacer que funcione mi configuración les comparto como están mis archivos:
dahdi-channels.conf
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
; Autogenerated by /usr/sbin/dahdi_genconf on Sat Aug 8 11:51:15 2020
; If you edit this file and execute /usr/sbin/dahdi_genconf again,
; your manual changes will be LOST.
; Dahdi Channels Configurations (chan_dahdi.conf)
;
; This is not intended to be a complete chan_dahdi.conf. Rather, it is intended
; to be #include-d by /etc/chan_dahdi.conf that will include the global settings
;
; Span 1: WCTDM/0 "Wildcard TDM410P" (MASTER)
;;; line="1 WCTDM/0/0 FXSKS"
signalling=fxs_ks
callerid=asreceived
group=0
context=from-analog
channel => 1
callerid=
group=
context=default
;;; line="2 WCTDM/0/1 FXSKS"
signalling=fxs_ks
callerid=asreceived
group=1
context=from-analog
channel => 2
callerid=
group=
context=default
;;; line="3 WCTDM/0/2 FXSKS"
signalling=fxs_ks
callerid=asreceived
group=2
context=from-analog
channel => 3
callerid=
group=
context=default
;;; line="4 WCTDM/0/3 FXSKS"
signalling=fxs_ks
callerid=asreceived
group=3
context=from-analog
channel => 4
callerid=
group=
context=default
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
chan_dahdi.conf
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
; Auto-generated by /usr/sbin/hardware_detector
[trunkgroups]
[channels]
context=from-pstn
signalling=fxs_ks
rxwink=300 ; Atlas seems to use long (250ms) winks
usecallerid=yes
hidecallerid=no
callwaiting=yes
usecallingpres=yes
callwaitingcallerid=yes
callerid=asreceived
threewaycalling=yes
transfer=yes
canpark=yes
cancallforward=yes
callreturn=yes
echocancel=yes
echocancelwhenbridged=no
faxdetect=incoming
echotraining=800
rxgain=4.0
txgain=4.0
callgroup=1
pickupgroup=1
relaxdtmf=yes
;Uncomment these lines if you have problems with the disconection of your analog lines
busydetect=yes
busycount=7
immediate=yes
group=0
channel =>1
group=1
channel =>2
group=2
channel =>3
group=3
channel =>4
;#include dahdi-channels.conf
;#include chan_dahdi_additional.conf
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
En la siguiente liga están capturas de pantalla de las configuración en el explorador web ojala me puedan apoyar por que ya no doy con que mas hacer.
https://imgbox.com/g/7pGFuAKIVj