Avaya BCM50 Konfigurationsanleitung PDF herunterladen (Seite 38)

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38 Chapter 2 System telephony networking overview

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• DPNSS

• BRI: ETSI QSIG

•T1: E&M

• VoIP trunks (with optional MDCN)

BCM systems can be networked together using T-1, PRI or VoIP trunks. PRI SL-1 lines and VoIP

trunks also offer the opportunity to use the MCDN protocol, which provides enhanced trunking

features and end-to-end user identification. If a Meridian 1 is part of the MCDN network, the

network can also provide centralized voice mail and auto attendant off the Meridian.

MCDN note: MCDN networking requires all nodes on the network to use a common Universal

Dialing Plan (UDP) or a Coordinated Dialing Plan (CDP).

Keycode requirements

Keycodes are required to activate the protocols that are used to create private networking,

including:

• VoIP Gateway keycodes

• an MCDN, DPNSS, or Q. Sig keycode, if you want to use a networking protocol between the

systems

You must purchase and install these keycodes before you can create any of the networks described

in this chapter. Consult with your Nortel distributor to ensure you order the correct keycodes for

the type of network you want to create.

Remote access to the network

Authorized users can access TIE lines, central office lines, and features from outside the system.

Remote users accessing a private network configured over a large geographical area can avoid toll

charges.

Note: MCDN is referred to as SL-1 in Element Manager.

Note: You cannot program a DISA DN or Auto DN to a VoIP trunk, as they

act as auto-answer trunks from one private network to the next. However, you

can configure VoIP line pools with remote access packages so that callers can

access telephones or the local PSTN on remote nodes on a tandemed network

that use VoIP trunks between systems.

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