Use the CAMA Numbering - E911 Format screen to administer Centralized Automatic Message Accounting (CAMA) trunks. Also use this screen to provide Caller Emergency Service Identification (CESID) information to your local emergency system through the local tandem office.

This screen provides the CESID format by extension or number blocks. With this flexibility, multiple CESID formats can be sent over multiple CAMA trunk groups and mixed telephone numbering plans. This flexibility supports some limited conversion from non-DID to DID numbers that the Private Switch/Automatic Location Interface (PS/ALI) database usually requires.

The System CESID Default field defines the CESID for all extensions that are not defined in the Ext Code fields. The first page of this screen contains the default CESID, plus extension fields for CESID entries. Each remaining page contains additional extension fields for CESID entries.