Altigen ACM 6.7 Administrator's Manual page 193

Configuration Example - Solving 10-digit Dialing
1. Create a route to include all the T1 channels.
2. Apply the route to Default Routes.
3. On the Dialing Pattern tab, add two dialing patterns: "1214" and "1972", each with
a pattern length of 11.
MAXCS ACM 6.7 Administration Manual 179