Polycom ViewStation EX4000 - Manual (Page 71)

Chapter 3 - Before You Deploy
© Polycom, Inc. 61
If the local zone prefixes are configured, requests from neighbor
gatekeepers with prefixes that match the local zone prefix will be
resolved. All other calls will be rejected.
Entity Addressing
An entity must have a network address and may have alias
addresses. These are defined as follows:
❑
Network address: This address relates to network transport. It
is usually a TCP/IP address. This address can either be
automatically issues via dynamic host configuration protocol
(DHCP), or statically assigned by the administrator from a pool
of available addresses.
❑
Alias address: This may be a telephone number (private
number or public E.164 address) or an H.323 identifier, which is
an alphabetic string such as a username, email-like address, or
H.323 URL.
❑
LAN host name: Any system connected to a LAN must have a
LAN host name (netBIOS name) defined. This is sometimes
called the computer name.
An alias address may represent a terminal or it may represent a
conference. Alias addresses must be unique within a zone. For
example, within a zone there may only be one entity that uses the
alias 3721005.
Table 3-3. Zone Identifiers and Neighbor Gatekeepers
Prefix
Milpitas
gatekeeper Austin
gatekeeper Atlanta
gatekeeper
Local zone prefix 408 512 770
Neighbor gatekeeper 1 prefix 512 408 408
Neighbor gatekeeper 2 prefix 770 770 512