Aastra 9000i Series Administrator's Manual page 563

Local Directory Loose Number Matching
If the incoming calling number does not match exactly to the local directory, the lookup will fail
and the phone will not display the stored directory name. Now, the phone can be configured to
match only the specified number of digits against the local directory.
Administrators can enter a parameter "directory digits match" to determine the number of
digits (from the incoming call) that the phone will use to perform a lookup in the local directory
to match the number to a contact. The phone will take the last n digits of the incoming call to
perform the lookup.
For example, if a local directory contains the following contact:
555123456 Spain Office,
and the "directory digits match" parameter is configured (directory digits match: 9), the phone
will take the last 9 digits of the incoming number (+34555123456) and match it to the contact in
the directory and display the following on the phone:
Spain Office
+34555123456
Configuring Local Directory Loose Number Matching
Use the following procedures to configure local directory loose number matching on the IP
phones.
Configuration Files
For specific parameters you can set in the configuration files for configuring the local directory loose number
matching, see Appendix A, the section,
5-286
"Directory Settings" on page A-132.
41-001343-01 Rev 02, Release 3.2.2