Nortel BCM 3.7, Manual

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W 937
Programming Operations Guide
voice call deny
Use this feature to prevent your telephone from receiving voice call.
voice message center
A maximum of five external voice message centers can be programmed onto a Business
Communications Manager. However, each telephone can only access one system. If the
Business Communications Manager is hosting voice messaging for other systems, remote
call-in must be set up to accommodate external callers, even over a private MCDN
network. Refer also to centralized voice mail and centralized auto attendant.
VoIP trunking
Voice over IP (VoIP) is the capability to deliver voice traffic using the IP network. VoIP is
a set of facilities for managing the delivery of voice information using the IP. In general,
this means sending voice information in digital form in discrete packets rather than in the
traditional circuit-committed protocols of the public switched telephone network (PSTN).
A major advantage of VoIP and Internet telephony is that it avoids the tolls charged by
ordinary telephone service.
In addition to IP, VoIP also uses the real-time protocol (RTP) to help ensure that packets
get delivered in a timely way.
The Business Communications Manager provides VoIP trunks that access a gateway on
the system. The gateway receives packetized voice transmissions from users within the
company and then routes them to a specific destination in another part of its intranet (local
area or wide area network). VoIP trunks can be used by both digital and IP telephones.
These trunks can also supply the MCDN trunking features such as TAT, TRO and ICCL.
IP telephone and trunk programming is dealt with in the
IP Telephony Configuration
Guide .
W
wait for dial tone
A feature that causes a sequence of numbers to pause until dial tone is present on the line
before continuing to dial. The Wait for dial tone symbol uses two of the 24 spaces in a
dialing sequence.
WAN
The Wide Area Network is a collection of computers or Business Communications
Manager base units connected or networked to each other over long distances, normally
using common carrier facilities.
web cache
A web cache is a server or collection of servers that store copies of Internet content. The
web cache server can be either located on the LAN where the clients it serves are also
located, or it can be embedded within the enterprise WAN or at the client’s Internet
Service Provider (ISP).