Alcatel Unleashed

Hi
I have an OXO and a WiFi network.
I have IP phones which work fine.
I have 5 Wifi phones Alcatel model ALCATEL-LUCENT 8158S
I try to get external line with 0.
First time I get message "call released"
second try I hear the provider tone and dials fine outbound call.
If I try again, , call resleased
If I try again, normal outbound call.
this loop for ever

please help

Looks like a timer issue ; did you get same issue with ip desk phone? the external line is analog?

hi
finally the issue is resolved.
it was an analog trunk added somehow to the external trunk group 0, which is not connected of course.