Cisco Cisco TelePresence Video Communication Server Expressway 관리 매뉴얼
Protocols
Field
Description
Usage tips
Time to live
The interval (in seconds) at
which an H.323 endpoint
must re-register with the
Cisco VCS in order to
confirm that it is still
functioning. Default is
1800.
which an H.323 endpoint
must re-register with the
Cisco VCS in order to
confirm that it is still
functioning. Default is
1800.
Some older endpoints do not support the ability to
periodically re-register with the system. In this case,
and in any other situation where the system has not had
a confirmation from the endpoint within the specified
period, it will send an IRQ to the endpoint to verify that
it is still functioning.
periodically re-register with the system. In this case,
and in any other situation where the system has not had
a confirmation from the endpoint within the specified
period, it will send an IRQ to the endpoint to verify that
it is still functioning.
Call time to
live
live
The interval (in seconds) at
which the Cisco VCS polls
the endpoints in a call to
verify that they are still in
the call. Default is 120.
which the Cisco VCS polls
the endpoints in a call to
verify that they are still in
the call. Default is 120.
If the endpoint does not respond, the call will be
disconnected.
disconnected.
The system polls endpoints in a call regardless of
whether the call type is traversal or non-traversal.
whether the call type is traversal or non-traversal.
Auto
discover
discover
Determines whether it will
respond to
respond to
sent
out by endpoints. The
default is On.
default is On.
To prevent H.323 endpoints being able to register
automatically with the Cisco VCS, set Auto discover
to Off. This means that endpoints can only register with
the Cisco VCS if their Gatekeeper Discovery setting
is Manual and they have been configured with the
Cisco VCS’s IP address.
automatically with the Cisco VCS, set Auto discover
to Off. This means that endpoints can only register with
the Cisco VCS if their Gatekeeper Discovery setting
is Manual and they have been configured with the
Cisco VCS’s IP address.
Caller ID
Specifies whether the
prefix of the ISDN gateway
is inserted into the caller's
E.164 number presented on
the destination endpoint.
prefix of the ISDN gateway
is inserted into the caller's
E.164 number presented on
the destination endpoint.
Including the prefix allows the recipient to directly return
the call.
the call.
SIP configuration
The SIP page (
VCS configuration > Protocols > SIP > Configuration
) is used to enable and
disable SIP on the Cisco VCS, and configure SIP-specific ports and settings.
Field
Description
Usage tips
SIP mode
Enables and disables SIP functionality (SIP
registrar and SIP proxy services) on the Cisco VCS.
Default is On.
registrar and SIP proxy services) on the Cisco VCS.
Default is On.
This mode must be enabled to
use either the Presence Server
or the Presence User Agent.
use either the Presence Server
or the Presence User Agent.
Registration
expire delta
(seconds)
expire delta
(seconds)
The period within which a SIP endpoint must re-
register with the Cisco VCS to prevent its
registration expiring. Default is 60.
register with the Cisco VCS to prevent its
registration expiring. Default is 60.
This applies only to endpoints
registered with the Cisco
VCS. It does not apply to
endpoints whose registrations
are proxied through the Cisco
VCS.
registered with the Cisco
VCS. It does not apply to
endpoints whose registrations
are proxied through the Cisco
VCS.
Cisco VCS Administrator Guide (X6)
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