Cisco Cisco TelePresence Video Communication Server Expressway
Appendix 2 – DNS records configuration
Appendix 2 – DNS records configuration
DNS configuration on host server
The following records are required to be configured in the external DNS which hosts the externally
routable domain: example.com to allow:
routable domain: example.com to allow:
external endpoints registration messages to be routed to the Cisco VCS Expressway
calls from non-registered endpoints (or other infrastructure devices) to be routed to the Cisco VCS
Expressway
Expressway
Host DNS A record
Host
TTL
Type
Data
vcse.example.com 86400
A
192.0.2.2
DNS SRV records
Service
Protocol
Host
Port
Notes
h323cs tcp
_h323cs._tcp.example.com
1720
h323ls udp
_h323ls._udp.example.com
1719
sip tcp _sip._tcp.example.com
5060
sip udp _sip._udp.example.com
5060
sips tcp _sips._tcp.example.com
5061
sips
tls
_sips._tls.example.com
5061
For E20 TE2.1
sip tls _sip._tls.example.com
5061
For MXP F8.2, T150
L6.0, Movi prior to
version 3.1
L6.0, Movi prior to
version 3.1
For each DNS SRV record the following values are common:
Name
example.com
TTL
86400
Type
SRV
Priority
10
Weight
10
Target
vcse.example.com.
Cisco VCS Deployment Guide: Basic Cisco VCS configuration – Cisco VCS Control with
Cisco VCS Expressway
Cisco VCS Expressway
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