Cisco TelePresence Administrator's Manual page 358

Service/ Description
function
DNS Used for sending requests
to DNS servers.
H.225 and H.245 call The range of ports used for
signaling port range call signaling after a call is
established.
SIP TCP outbound port The range of ports used by
range outbound TCP/TLS SIP
connections to a remote
SIP device.
Traversal media port For traversal calls (where
range the VCS takes the media
as well as the signaling),
the range of ports to be
used for the media. Ports
are allocated from this
range in pairs, with the first
port number of each pair
being an even number.
See
Subzone
information.
TURN relay media port The range of ports
range available for TURN media
relay.
LDAP Used for outbound
connection to an LDAP
server (if the VCS is
configured to use an LDAP
server for H.350
authentication).
Cisco VCS Administrator Guide (X7.1)
Default
1024 -
65535
UDP
15000 -
19999
TCP
25000 -
29999
TCP
50000 -
52399
UDP
About the Traversal
for more
60000 -
61200
UDP
uses a TCP source port from the
ephemeral range
Direction Available
range
outbound 1024 - 65335
inbound 1024 - 65534
outbound
outbound 1024 - 65534
outbound 1024 - 65533
inbound 1024 - 65534
outbound
Reference material
Configurable via
System > DNS
VCS configuration >
Protocols > H.323
xConfiguration H323
Gatekeeper
CallSignaling
PortRange Start
xConfiguration H323
Gatekeeper
CallSignaling
PortRange End
VCS configuration >
Protocols > SIP >
Configuration
xConfiguration SIP
TCP Outbound Port
Start
xConfiguration SIP
TCP Outbound Port
End
VCS configuration >
Local Zone > Traversal
Subzone
xConfiguration
Traversal Media Port
Start
xConfiguration
Traversal Media Port
End
VCS configuration >
Expressway > TURN
xConfiguration
Traversal Server
TURN Media Port
Start
xConfiguration
Traversal Server
TURN Media Port End
Page 358 of 479