Provisioning Information (ISDN PRI)

This section explains how to order an ISDN PRI line for your Dialogic Diva PRI Media Board. 

What to order 

Specify the following requirements when you place your order: 

• 23 B-channels + 1 D-channel 

• D-channel on channel 24 (timeslot 24). Do not order NFAS (non-facility associated signaling service), which enables you to use channel 24 as a data-carrying B-channel. 

• Layer 1 line code is B8ZS with ESF (Extended SuperFraming) 

• Data rate of 1.544 Mbps 

• 64 kbps clear channel service which ensures calls will not be routed over 56 kbps channels 

• Companding type is µ-law 

• A CSU is not required (the Dialogic Diva Media Board supplies the function of the CSU internally). However, you can connect to a CSU if present. 

• A DSU is not required (the Dialogic Diva Media Board supplies the function of the DSU internally).

• The T1 interface number must be 0.

• The D-channel must be specified as the terminal endpoint identifier (TEI) 0. 

• If the switch type is AT&T/Lucent, request that allocation of channels for incoming calls is in descending order, high to low (23 to 1). 

Information to obtain when you order 

Obtain the following information when you place your order. You will need this information to properly configure your Dialogic Diva PRI Media Board. 

• The type of ISDN switch your line is connected to. 

  • AT&T/Lucent 4ESS 

  • AT&T/Lucent 5ESS 

  • Nortel DMS-100 

  • Nortel DMS-250 

  • National ISDN-2 (any switch running NI-2) 

  • Japan INS-1500 

• Directory or phone number assigned to the PRI line. 

• Line build out setting (LBO). Only if you are going to use the Diva Media Board's on-board CSU.

• Number of DNIS (Dialed Number Identification Service) digits provided by your service provider. Normally, you can choose between four, seven, or ten digits.