Cisco Cisco Expressway Maintenance Manual
Configuring H.323
The
H.323
page (
Configuration > Protocols > H.323
) is used to configure the H.323 settings on the
Expressway, including:
n
whether H.323 is enabled or not
n
whether to insert the prefix of the ISDN gateway into the caller's E.164 number presented on the
destination endpoint
destination endpoint
The configurable options are:
Field
Description
Usage tips
H.323 mode
Enables or disables H.323 on the Expressway. H.323
support is On by default.
support is On by default.
Call signaling
TCP port
TCP port
The listening port for H.323 call signaling. Default is
1720.
1720.
Call signaling
port range
start and end
port range
start and end
Specifies the lower port in the range used by H.323
calls after they are established. Default is 15000.
calls after they are established. Default is 15000.
The call signaling port range must be
great enough to support all the
required concurrent calls.
great enough to support all the
required concurrent calls.
Call time to live The interval (in seconds) at which the Expressway
polls the endpoints in a call to verify that they are still
in the call. Default is 120.
in the call. Default is 120.
If the endpoint does not respond, the
call will be disconnected.
call will be disconnected.
Auto discover
Determines whether it will respond to Gatekeeper
Discovery Requests sent out by endpoints. The
default is On.
Discovery Requests sent out by endpoints. The
default is On.
Cisco Expressway Administrator Guide (X8.1.1)
Page 65 of 343
Protocols
Configuring H.323