Appendix B: Required Service Parameters

Service Parameters/Request Information for PRI

To subscribe to PRI service, certain parameters are required to establish service. The information provided below identifies the recommended and supported parameters for PRI service. When ordering PRI service, provide the following service request information:

Equipment Information

PBX Manufacturer—AltiGen Communications, Inc.

CSU/DSU—ADTRAN T1 ACE (recommended) or other CSU/DSU

Technical Information for PRI with Voice

Switch Type:

5ESS (recommended)

DMS (recommended)

NI-2 (recommended)

4ESS

MEGACOMM

Framing:

Super Frame (SF)/D4

Extended Super Frame (ESF) (recommended)

Line Coding:

Alternate Mark Inversion (AMI)

B8ZS (recommended)

Physical Termination:

RJ-48X or RJ-48C

Wire:

4 wires

PRI Channel Assignment

D Channels Assignment—24th channel (channel ID 23)

Note: AltiWare ACC/ACM can configure any channel in a PRI span to be the D channel. The default setting is the last channel. Every span should select a D channel within the span. Shared D channel (NFAS) or back up D channel is not supported.

Hunting—Most Idle, Least Idle, Ascend, Descend DNIS Digits—can be 3 to 10 digits

CSU/DSU Requirements

The CSU (channel service unit) is a device used to connect a digital trunk line coming in from the phone company to the PBX. A CSU can terminate signals, repeat signals, and respond to loopback commands sent from the central office.

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AltiGen comm ACM 5.1 Service Parameters/Request Information for PRI, Technical Information for PRI with Voice, Line Coding