ISDN-PRI (Integrated Service Digital Network - Primary Rate Interface) is a Public Switched Telephone Network (PSTN) service that provides 23 B channels (16 B channels for the Electra Elite IPK - Basic port package) and a single D channel (23B+1D) for trunking. The Electra Elite IPK supports CO Line or DID Line type connections. The following services are available with an ISDN-PRI circuit.
CO Line Service
When configured for CO Line Service, the trunks emulate Loop Start or Ground Start trunks for both outgoing and incoming calls.
DID Line Service
When configured for DID Line Service, the trunks emulate Loop Start or Ground Start trunks for outgoing calls and DID trunks for incoming calls.
Call By Call Service
Call By call Service allows multiple services to share a PRI line. When a call is originated or terminated, an Information Element (IE) called the Network Specified Facility (NSF) is added to the SETUP message to identify the service associated with the call.
Calling Party Number (CPN) Service
Calling Party Number (CPN) Service can display the calling party telephone number and/or name on the LCD of the Multiline Terminal for incoming calls. This emulates Caller ID Indication of Analog Trunks.
Calling Party Number (CPN) Presentation from Station
Calling Party Number (CPN) Presentation from Station allows each unique station 10-digit number (representing the DID number of the originating station) to be sent out over the PRI circuit.
Enhanced 911 Service with ISDN PRI
Enhanced 911 Service is supported by defining an available ISDN PRI trunk as a E911 trunk. When a station user dials 911, 9+ 911, or CO line key + 911, the E911 trunk is selected and the Public Safety Answering Point (PSAP) is called. The PSAP is provided callback information generated from the Electra Elite IPK system.
ISDN-PRI (Integrated Service Digital Network - Primary Rate Interface)