13.2.2  
BRI 
 

Introduction  
To set up the HiPath 3000 for BRI ISDN, users must receive service profile identifier designator (SPID) numbers from the telephone company (telco). SPID numbers identify the type of ISDN service and the variety of features that customers receive. In addition, to allow direct access to specific devices, some BRI interfaces can be set up with CACH EKTS. Depending on the central office (CO) switch type, users have to configure either call appearance identification (CAID) values (also known as CACH values) or phantom direct inward dialing (PDID) numbers for all devices that make external calls.
Depending on the central office (CO) protocol selected, users need to configure some or all of the following parameters for BRI setup:
 •   CO protocol
 •   SPID administration
 •   CAID administration (AT&T or EWSD)
 •   PDID administration (DMS100)
 •   Feature identification number (FIN) for message waiting
 •   CO Features (Transfer/Conference/Drop)
 •   Feature identification number (FIN) for Transfer, Conference and Drop
 •   CACH EKTS flag (AT&T or EWSD)
The CO protocol is the interface between HiPath 3550, HiPath 3350, HiPath 3500 or HiPath 3300 and the central office of the BRI provider. Select the same protocol that the BRI provider uses. The following CO protocols are supported:
 •   AT&T NI1
 •   AT&T Custom
 •   Siemens Enterprise Communications NI1
 •   Nortel NI1
Nortel NI1 requires PDID values instead of CAID values; for more information refer to the section on PDID administration below.
If you are unsure of the CO protocol, consult the ISDN provider.  
SPID administration allows customers to set service profile identification designator values. Each BRI line is assigned two SPID values. The HiPath 3000 systems support up to eight SPIDs. The SPID values can be assigned to any combination of digital stations or digital data terminals and could be required for some data terminals. SPID numbers are used by the CO to identify each terminal for features such as message waiting, call transfer, and conference. Customers must configure the numbers in sequence according to the order of the stations in the system. A primary directory number is assigned to each SPID address number.
Consult the BRI provider for specific SPID number information.
CAID administration allows customers to set call appearance identification values when the CO switch type is AT&T or EWSD. CAID values are one or two digits that are assigned by the central office to the primary and secondary system numbers. A CAID value represents a talk path from a voice station or a data terminal to a BRI channel. At least one CAID must be programmed for each extension so that external calls can be received and answered directly without going through the switch. Each device in the system can have up to four CAID values.
Multiple CAID values must be assigned to a station to allow for external telephone functions, such as to answer camp-on calls and conference calls. CAID values are used to simulate multiple call handling at a single desktop station. In other words, each of the CAID numbers simulates an additional extension (i.e., a line) without an actual external line being present for these additional extension numbers.
Some COs do not assign CAID values to ISDN data terminals. If you do not know the CAID numbers assigned to the system, consult the BRI provider.  
PDID administration allows customers to set phantom direct inward dialing identification numbers (PDIDs). PDID numbers take the place of CAID values in the Nortel DMS100 NI1 CO only. Customers can assign PDID numbers to all voice and data terminals in the system. This allows incoming calls to be routed to the specified station or ISDN terminal without attendant intervention.
The PDID number can be from 1 to 7 digits in length, corresponding to a traditional seven-digit phone number.
PDIDs or directory numbers (DNs) are assigned by the ISDN provider.
FIN for message waiting allows users to set the feature identification number (FIN) for the BRI message waiting feature provided by the LEC. The LEC assigns FIN values to associate the feature with specific HiPath 3550, HiPath 3350, HiPath 3500 or HiPath 3300 stations; contact the LEC to obtain the FIN values for the stations.
The message waiting FIN value can only be assigned to stations with primary directory numbers.
With FIN for message waiting, customers must enter a FIN value for each station. Every station must have a FIN value assigned; however, each station can have the same number.
CO features (Transfer/Conference/Drop) allows the customer to enable the CO features Transfer, Conference, and Drop.
FIN for Transfer, Conference and Drop allows customers to set the feature identification numbers (FIN) for the BRI Transfer, Conference, and Drop features provided by the LEC in the case of NI1 (AT&T NI1, Siemens Enterprise Communications NI1 or Nortel NI1). The FIN must be the same for all the BRI interfaces; contact the LEC to obtain the FIN values for these features.
CACH EKTS flag allows customers to indicate which of the BRI interfaces are configured within the LEC as CACH EKTS.
CACH is one of the methods used to have BRI emulate an analog hunt. Although there is a CACH setting in the NT DMS, it does not react in the same manner; the CACH setting in the DMS does not allow the sharing of DNs. Administration of CACH values in the HiPath 3000 is referred to as CAID (Call Appearance IDentification) administration.

HiPath 3000/5000 V9, Feature Description, Issue 7   up Top
Disclaimer & Copyright   ID: P31003H3590F100017618   2012-06-25