Automatic Call Distribution (ACD)
Calling Line Identification (CLI)
Computer Telephony Integration (CTI)
Daylight Saving Time-Automatic
Dialed Number Identification Service (DNIS)
Direct Inward Dialing (DID) T1
Direct Inward System Access (DISA)
Door Lock Release (Programmable)
Trunk Monitor or Service Observing
4.1
PART 4. BUSINESS FEATURE PACKAGE
SYSTEM FEATURES
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