Polycom 3725-76302-001O manual To enable DNS publishing

Call Server Configuration

The following table describes the fields on the Embedded DNS page.

Field	Description
Enable embedded DNS service	Enables the embedded DNS servers.
Call server sub-domain controlled	The fully qualified domain name of the enterprise domain for which the
by RealPresence DMA	RealPresence DMA system is to provide DNS. For instance, for the base
	domain example.com, the sub-domain that the RealPresence DMA system
	services might be:
	callservers.example.com
	This is the logical Call Server domain name for which you must create NS
	records in your enterprise DNS. And this is the domain name that the system
	combines with each site name to form the logical FQDN that endpoints in
	each site should register to.

To enable DNS publishing

1Be sure you’ve added the required NS records, one for each cluster in the supercluster, to your enterprise DNS and have configured it to forward requests for names in the logical Call Server domain to any of the clusters in the supercluster (see Additional DNS Records for the Optional Embedded DNS Feature).

2Go to Admin > Call Server > Embedded DNS.

3Click Enable embedded DNS service.

4In the Call server sub-domain controlled by RealPresence DMA field, enter the logical Call Server domain name (the enterprise domain for which the RealPresence DMA system is to provide DNS) and click Update.

5Reconfigure your endpoints to register to the correct domain name for their site.

To determine the correct domain name for a site, go to Network > Site Topology > Sites, select the site, and click Site Information. The Logical host name field displays the correct domain name. It takes the form:

callserver-<site name>.<logical Call Server domain name>

For instance, if the fully qualified domain name for the logical Call Server domain is callservers.example.com, the correct domain name for endpoints in the paris site is:

callserver-paris.callservers.example.com

Note: Verify RealPresence Resource Manager Settings

If you have a Polycom RealPresence Resource Manager system integrated with the RealPresence DMA system, make sure that in its Edit DMA dialog box, Support DMA Supercluster is selected and Call server sub-domainmatches the value in the RealPresence DMA system’s Call server sub-domain controlled by RealPresence DMA field.

Enter all network/DNS-related information in all lower case to avoid possible case-sensitivity issues with various devices and ensure interoperability.

See also:

Call Server Configuration

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