call transformation can be performed using the external phone party mask on the DN config, can be done on translation patterns, route patterns, route list level and finally at the GW level.
check all those
it also might be that the telco is the one adding that, but you would need to get a debug from the GW to verify you're only sending 7 digits
HTH
javalenc
if this helps, please rate
HTH
java
if this helps, please rate
