I'm running CMExpress on Cisco 2911 with one E1 card and callers can't hear ringback when the call is actually ringing in the local site. They just hear one ringback on the establish of call and after that, nothing until the end-user off-hook the phone.
Can someone have an idea about this issue?
Tahnks in advanced for your help.
This is the configuration:
controller E1 0/0/0
ds0-group 0 timeslots 1-15,17-31 type r2-digital r2-compelled ani
answer-signal group-b 1
dnis-digits min 4 max 4
dtmf timer inter-digit 250
dsp services dspfarm
dial-peer voice 7 pots
description ### INCOMING CALLS E1-PSTN ###
translation-profile incoming To-AA
incoming called-number .