Nortel Networks BCM1000 manual Telephony components

20 Chapter 1 Introducing the Business Communications Manager

Telephony components

The telephony components perform call processing by connecting the telephones or peripheral telephony equipment, such as fax machines, to the Public Switched Telephone Network (PSTN) lines. They also process telephony information that has been received through an IP link.

•MSC — The Media Services Card (MSC) is a PCI card which performs call processing and media processing of the voice channels. The BCM100 MSC contains two PEC IIIs that provide voice channel processing for the MSC. You can upgrade your system with two additional PEC IIIs. Refer to “Media Services Card” on page 22.

Note: You can upgrade the PEC Is on your 2.0 BCM1000 to PEC IIIs.

You cannot mix PEC Is with PEC IIIs. You must be running Business Communications Manager 2.5 software or greater to allow this.

•CTM (North American systems only) — The Calling line identification (CLID) Trunk media bay module (CTM) connects to four analog CLID PSTN lines.

•CTM 8 (North American systems only) — This CLID Trunk media bay module (CTM) connects to eight analog CLID PSTN lines.

•GATM4 (global markets) — Replaces the CTM. Provides an option for automatically downloading new firmware from the main system for selected country profiles.

•GATM8 (global markets) — Replaces the CTM8. Provides an option for automatically downloading new firmware from the main system for selected country profiles.

•4X16 (North American systems only) — This module combines a four-line CLID Trunk media bay module (CTM) with a 16-line Digital Station media bay module.

•DTM — The Digital Trunk media bay module (DTM) connects to standard digital PSTN T1, E1 or PRI lines.

•BRI — The Basic Rate Interface media bay module (BRI) connects to four BRI S/T ISDN lines. (NT1 required. S interface for European profiles; T interface for North American-based profiles)

•ASM 8 (North American systems only) — The Analog Station media bay module (ASM 8) connects to eight analog telephones or other analog equipment such as fax machines.

•ASM 8+ (Global) — This enhanced Analog Station media bay module has the same functionality as the ASM 8, plus it supports CLID, message waiting indicators, disconnect supervision and automatic firmware downloads. This module can also be programmed for any of the four offsets on a Full Double Density DS30 bus.

•DSM 16 — The 16-port Digital Station media bay module (DSM 16) connects to a maximum of 16 digital telephones.

•DSM 16+ — This Digital Station media bay module provides the same functionality as the DSM 16. This module can be set to single or double density. Double density settings allow the module to support 16 telephones on one offset, allowing two modules per DS30 bus.

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