Configuring SIP
The
SIP
page (
Configuration > Protocols > SIP
) is used to configure the SIP settings on the VCS,
including:
n
SIP functionality and SIP-specific transport modes and ports
n
certificate revocation checking modes for TLS connections
n
registration controls for standard and outbound registrations
n
authentication controls for
delegated credential checking
SIP functionality and SIP-specific transport modes and ports
This section contains the basic settings for enabling SIP functionality and for configuring the various SIP-
specific transport modes and ports. The configurable options are:
Field
Description
Usage tips
SIP mode
Enables and disables SIP functionality (SIP registrar and
SIP proxy services) on the VCS. Default is
On
.
This mode must be enabled to use
either the Presence Server or the
Presence User Agent.
SIP protocols
and ports
The VCS supports SIP over
UDP
,
TCP
and
TLS
transport
protocols. Use the
Mode
and
Port
settings for each
protocol to configure whether or not incoming and
outgoing connections using that protocol are supported,
and if so, the ports on which the VCS listens for such
connections.
By default UDP is
Off
, and TCP and TLS are
On
. The
default ports are:
n
UDP port: 5060
n
TCP port: 5060
n
TLS port: 5061
At least one of the transport
protocols must be set to a
Mode
of
On
for SIP functionality to be
supported.
TCP outbound
port start / end
The range of ports the VCS uses when TCP and TLS
connections are established. The default range is 25000
to 29999.
The range must be sufficient to
support all required concurrent
connections.
Session
refresh
interval
The maximum time allowed between session refresh
requests for SIP calls. Default is 1800 seconds.
For further information see the
definition of
Session-Expires
in
RFC
4028
.
Minimum
session
refresh
interval
The minimum value the VCS will negotiate for the session
refresh interval for SIP calls. Default is 500 seconds.
For further information see the
definition of
Min-SE header
in
RFC
4028
.
Certificate revocation checking modes
This section controls the certificate revocation checking modes for SIP TLS connections. The configurable
options are:
Cisco VCS Administrator Guide (X8.1.1)
Page 84 of 507
Protocols
Configuring SIP