| more topics
|
Station Identification-Automatic Number Identification (SID-ANI) as Calling Party Number.
Facility-based information is used by the network for sending the Calling Party Number. If the SID-ANI option is programmed (and the service subscribed to), the system sends a system-wide base number of up to 12 digits, of which the final digits (up to 4 digits) are replaced with the number of the extension from which the call was made. For example, a call made from extension 7104 with a system-wide base number of 908-555-7000 sends the number 908-572-7104. For facility-to-facility calls where there is no call-originating extension (for example, Remote Call Forwarded calls), the system-wide base number is substituted. Trunk-to-trunk transfer, however, results in a CPN that consists of a base number in which the last digits are replaced by the number of the transferring extension.
In some instances, the system-wide base number is not sufficient to cover all extension numbers in the system. For example, the base number might be 908-555-7000 and there might be a group of extensions, 7000 through 7099, that correspond to telephone numbers from 908-555-7000 to 908-555-7099; there might be another group of extensions numbered 300 through 399 whose telephone numbers are 908-555-0300 through 908-555-0399. In a case like this, there is no base number that can cover all of the extensions so that the number sent is the correct number for the extension.
The MERLIN MAGIX Integrated System's PRI support for calling party identification
extends to MCI and local exchange (DMS-100) subscription services.
