[channels]
  language=en
  context=from-analog
  switchtype=national
  signalling=em_w
  usecallerid=yes
  hidecallerid=no
  callwaiting=yes
  callwaitingcallerid=yes
  threewaycalling=yes
  transfer=yes
  cancallforward=yes
  callreturn=yes
  echocancel=yes
  immediate=no
  callprogress=no
  callerid=asreceiveid
  ;usecallingpres=yes
  group=0
  callgroup=0
  pickupgroup=0
  echocancel=yes
  echocancelwhenbridged=yes
  echotraining=800
  musiconhold=default
  rxwink=300
  channel => 1-8