Direct Inward Dialing (DID)

System Availability: Strata CIX100, CIX200 and CIX670

This feature allows external callers to dial directly to individual extensions or groups of telephones without intervention by an operator, IVR or auto attendant. Each incoming DID number, which is sent to the CIX on a DID line from the CO, can be routed individually to an extension, pooled or

group line button, ACD group, maintenance modem, external page, night bell, voice mail box, or back out over the public or private telephone network. DID routing assignments can change automatically when the system switches between the Day and Night Modes.

DID numbers can vary between 1~7 digits in length for each DID line group. Each DID number can be assigned to 1 of 15 possible music-on-hold sources.

DID service is provided by DID analog, T1 or ISDN line interfaces.