Cisco TelePresence Administrator's Manual page 319

Response The content of the record received in response to the query for this Name and Type.
Example
If the system's Domain name is set to example.com, a lookup for a Host of host_name with a Query
type of All would result in the following DNS queries:
A host_name.example.com
AAAA host_name.example.com
NAPTR host_name.example.com
SRV host_name.example.com
SRV _h323ls._udp.host_name.example.com
SRV _h323cs._tcp.host_name.example.com
SRV _sips._tcp.host_name.example.com
SRV _sip._tcp.host_name.example.com
SRV _sip._udp.host_name.example.com
In each of these cases, if the query is unsuccessful an additional query would be made for host_name only.
Cisco VCS Administrator Guide (X7.2)
Maintenance
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