Cisco TelePresence Administrator's Manual page 392

Reference material
Table 7: Local inbound/outbound ports (continued)
Service/ Purpose
function
H.323 call Listens for H.323 call signaling.
signaling
Assent call Assent signaling on the VCS Expressway. 2776 TCP
signaling
H.460.18 H.460.18 signaling on the VCS
call Expressway.
signaling
TURN Listening port for TURN relay requests on
services VCS Expressway.
System Encrypted administration connector to the
database VCS system database.
SIP UDP Listens for incoming SIP UDP calls.
SIP TCP Listens for incoming SIP TCP calls.
SIP TLS Listens for incoming SIP TLS calls.
B2BUA Internal ports used by the B2BUA. Traffic
sent to these ports is blocked
automatically by the VCS's non-
configurable firewall rules.
Traversal Port on the VCS Expressway used for
server zone H.323 firewall traversal from a particular
H.323 Port traversal client.
Traversal Port on the VCS Expressway used for SIP
server zone firewall traversal from a particular
SIP Port traversal client.
H.225 and Range of ports used for call signaling after
H.245 call a call is established.
signaling
port range
SIP TCP Range of ports used by outbound
outbound TCP/TLS SIP connections to a remote SIP
port range device.
Ephemeral Various purposes.
ports
(The default range of 30000 – 35999
applies to new installations of X8.1 or
later; the previous default range of 40000
– 49999 still applies to earlier releases
that have upgraded to X8.1.)
Cisco VCS Administrator Guide (X8.1.1)
VCS port (default) Direction Configurable via
1720 TCP inbound
inbound
2777 TCP inbound
3478 UDP * inbound
4444 TCP inbound
5060 UDP inbound
outbound
5060 TCP inbound
5061 TCP inbound
5071, 5073 TCP inbound
6001 UDP, inbound
increments by 1 for
each new zone
7001 TCP, inbound
increments by 1 for
each new zone
15000 - 19999 TCP inbound
outbound
25000 - 29999 TCP outbound
30000 – 35999 outbound
Port reference
Configuration >
Protocols > H.323
Configuration >
Traversal > Ports
Configuration >
Traversal > Ports
Configuration >
Traversal > TURN
not configurable
Configuration >
Protocols > SIP
Configuration >
Protocols > SIP
Configuration >
Protocols > SIP
not configurable
Configuration >
Zones
Configuration >
Zones
Configuration >
Protocols > H.323
Configuration >
Protocols > SIP
System >
Administration
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