[channels]
 context=local
 signalling=fxs_ks
 echocancel=yes
 echocancelwhenbridged=yes
 relaxdtmf=yes
 rxgain=1.5
 txgain=1.5
 immediate=no
 busydetect=no
 callprogress=no
 musiconhold=default
 usecallerid=yes
 callerid=asreceived
 channel => 1