Cisco Cisco TelePresence Video Communication Server Expressway
9
SIP call to endpoint with public IP address
public
Internet
VCS Expressway
source port
Internet endpoint
server (listening) port
VCS Expressway
server (listening) port
Internet endpoint
source port
Call direction
Outbound to an endpoint in the
Internet
Inbound from an endpoint in the
Internet
Open firewall
DMZ to Internet
Internet to DMZ
IP address
IP address of
VCS Expressway
Any IP address
IP address of
VCS Expressway
Any IP address
IP Po
rt
s
SIP signaling
UDP C
5060
TCP & TLS A
25000 to 29999
UDP & TCP &
TLS F
5060 or >= 1024
UDP: C
5060
TCP: K
5060
TLS: L
5061
UDP G
5060 or >= 1024
TCP & TLS H
>= 1024
RTP
UDP Y
E
50000 to 52399
UDP E
>= 1024
UDP Y
E
50000 to 52399
UDP E
>= 1024
RTCP
UDP Y
E
50000 to 52399
UDP E
>= 1024
UDP Y
E
50000 to 52399
UDP E
>= 1024
C = Protocols > SIP > Configuration > UDP
port: default = 5060
A = Protocols > SIP > Configuration > TCP
Outbound port start to end: default = 25000
to 29999
to 29999
F = defined by endpoint’s registration (or if call
is to a non registered endpoint, IP port is
defined by DNS lookup) any port >= 1024,
often 5060 for UDP
defined by DNS lookup) any port >= 1024,
often 5060 for UDP
K = Protocols > SIP > Configuration > TCP port:
default = 5060
L = Protocols > SIP > Configuration > TLS port:
default =5061
G = any port >= 1024, often 5060 for hard
endpoints
H = any port >= 1024
Y
E
= Local Zone > Traversal Subzone >
Traversal Media port start to end (configured
on VCS Expressway): default = 50000 to
52399
on VCS Expressway): default = 50000 to
52399
E = Endpoint media port range; value used is
specified in the SDP:
= any IP port above 1024
= 50000 to 52399 for another VCS
= 2326 to 2385 for MXP static setting
= 11000 to 65000 for MXP dynamic setting
= any IP port above 1024
= 50000 to 52399 for another VCS
= 2326 to 2385 for MXP static setting
= 11000 to 65000 for MXP dynamic setting
VCS Control
VCS Expressway
DMZ