Multi-Tech Systems MULTIVOIP MVP-410ST/810ST - Manual (Page 341)

MultiVOIP User Guide T1 PhoneBook Configuration
341
The Outbound PhoneBook for the Minneapolis VOIP is shown below.
The third destination pattern, “7” facilitates reception of co-worker calls
using local-appearing-extensions only. In this case, the “Add Prefix”
field value for this phonebook entry would be “1410325” .