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D14049.05
February 2009
Grey Headline
(continued)
TANDBERG
VIDEO COMMUNICATIONS SERVER
ADMINISTRATOR GUIDE
Introduction
Getting started
Overview and
status
System
configuration
VCS
configuration
Zones and
neighbors
Call
processing
Bandwidth
control
Firewall
traversal
Appendices
Applications
Maintenance
Zones
Configuring DNS zones
The following options are available (in addition to the
common zone options
) when configuring a
DNS zone. DNS zones are used to enable the local VCS to locate endpoints and other systems by
using DNS lookups.
Full details of how to use and configure DNS zones are given in
URI dialing
.
Protocol
SIP mode
Determines whether SIP calls will be allowed to systems and endpoints located using DNS lookups
via this zone.
H.323 mode
Determines whether H.323 calls will be allowed to systems and endpoints located using DNS
lookups via this zone.
Advanced
Include address record
Determines whether, if no NAPTR (SIP) or SRV (SIP and H.323) records have been found for the
dialed alias via this zone, the VCS will then query for A and AAAA DNS records before moving on to
query lower priority zones. If A and AAAA records exist at the same domain for systems other than
those that support SIP or H.323, this may result in the VCS believing the search was successful
and forwarding calls to this zone, and the call will fail. The default is
Off
.
On
: the VCS will query for A or AAAA records. If any are found, the VCS will not then query any lower
priority zones.
Off
: the VCS will not query for A and AAAA records and instead will continue with the search,
querying the remaining lower priority zones.
The following options are available (in addition to the
common zone options
) when configuring an
ENUM zone. ENUM zones are used to enable ENUM dialing via the local VCS.
Full details of how to use and configure ENUM zones is given in
ENUM dialing
.
DNS settings
DNS suffix
Specifies the domain to be appended to the transformed E.164 number to create an ENUM domain
for which this zone is queried.
Protocol
SIP mode
Determines whether SIP records will be looked up for this zone.
H.323 mode
Determines whether H.323 records will be looked up for this zone.
Configuring ENUM zones