Configuring Enum Zones - Cisco TelePresence Administrator's Manual

Zones and neighbors
Field Description
Authentication Controls how the VCS authenticates incoming
policy messages from this zone and whether they are
subsequently treated as authenticated,
unauthenticated, or are rejected. The behavior
varies for H.323 messages, SIP messages that
originate from a local domain and SIP messages
that originate from non-local domains.
UDP / TCP probes section:
UDP retry The frequency (in seconds) with which the client
interval sends a UDP probe to the VCS Expressway if a
keep alive confirmation has not been received.
UDP retry count The number of times the client attempts to send a
UDP probe to the VCS Expressway during call
setup.
UDP keep alive The interval (in seconds) with which the client
interval sends a UDP probe to the VCS Expressway after a
call is established, in order to keep the firewall's
NAT bindings open.
TCP retry The interval (in seconds) with which the traversal
interval client sends a TCP probe to the VCS Expressway if
a keep alive confirmation has not been received.
TCP retry count The number of times the client attempts to send a
TCP probe to the VCS Expressway during call
setup.
TCP keep alive The interval (in seconds) with which the traversal
interval client sends a TCP probe to the VCS Expressway
when a call is in place, in order to maintain the
firewall's NAT bindings.

Configuring ENUM zones

ENUM zones allow you to locate endpoints via an ENUM lookup. You can create one or more search rules
for ENUM zones based on the ENUM DNS suffix used and/or by pattern matching of the endpoints' aliases.
After you have configured one or more ENUM zones, you can:
apply transforms to alias search requests directed to that group of endpoints
n
control the bandwidth used for calls between your local VCS and each group of ENUM endpoints
n
Full details of how to use and configure ENUM zones are given in the
The configurable options for an ENUM zone are:
Field Description
Name The name acts as a unique identifier, allowing you to distinguish
between zones of the same type.
Cisco VCS Administrator Guide (X8.1.1)
Usage tips
See Authentication policy configuration
options [p.105] for more information.
The default UDP and TCP probe retry
intervals are suitable for most
situations. However, if you experience
problems with NAT bindings timing out,
they may need to be changed.
About ENUM dialing [p.211]
Usage tips
Configuring zones
section.
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