Configuring DNS servers for ENUM and URI
dialing
DNS servers are required to support ENUM and URI dialing:
n ENUM dialing: to query for NAPTR records that map E.164 numbers to URIs
n URI dialing: to look up endpoints that are not locally registered or cannot be accessed via neighbor
systems
To configure the DNS servers used by the VCS for DNS queries:
1. Go to the DNS page (System > DNS).
2. Enter in the Address 1 to Address 5 fields the IP addresses of up to 5 DNS servers that the VCS will
query when attempting to locate a domain. These fields must use an IP address, not a FQDN.
Cisco VCS Administrator Guide (X8.1.1) Page 217 of 507
Dial plan and call processing
Configuring DNS servers for ENUM and URI dialing
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