Cisco Cisco TelePresence MCU 4510 Maintenance Manual
Reservation of MCU media ports
Cisco TelePresence MCU Version 4.2 Printable online help
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Ad hoc conferencing
Because port reservations are mandatory in Reserved mode every active conference must have
configured values for the number of video ports and the number of audio-only ports to reserve for it. In
turn this means that every active conference must be configured, and therefore ad hoc conferences
are not permitted when in Reserved mode.
configured values for the number of video ports and the number of audio-only ports to reserve for it. In
turn this means that every active conference must be configured, and therefore ad hoc conferences
are not permitted when in Reserved mode.
This affects the operation of the MCU in the following ways:
• Auto attendant usage
In reserved mode, the
Create new conference
option will not be shown on video auto
attendant menus, even for auto attendants configured to display this option.
• Auto attendant configuration
When configuring new or existing
conferences parameter will not be available.
• Calls to unknown E.164 number configuration
This setting on the
Conference settings
page also offers a Create new conference option. This
is not available in reserved mode and becomes equivalent to the Disconnect caller option.
Auto attendant connections
If a participant calls in to the MCU and connects to an auto attendant, the MCU does not know which
conference they will join until they make a selection from the auto attendant menu.
conference they will join until they make a selection from the auto attendant menu.
In
, the auto attendant connection allocates a media port from those not currently in
use. If all of the media ports are in use, the endpoint's connection will be dropped by the MCU.
In
, the auto attendant connection effectively "borrows" a media port from those not
currently in use. However, this borrowed media port has a lower priority than a media port used by a
conference participant, and if the auto attendant connection "borrows" the last remaining media port,
then that connection will be dropped if another endpoint connects directly to a conference and requires
a reserved media port.
conference participant, and if the auto attendant connection "borrows" the last remaining media port,
then that connection will be dropped if another endpoint connects directly to a conference and requires
a reserved media port.
Changing MCU port reservation mode
In general, changing port reservation mode when there are active connections is not recommended.
The effects of changing mode include, but are not necessarily limited to:
The effects of changing mode include, but are not necessarily limited to:
Destruction of ad hoc conferences
Any ad hoc conferences in progress will be destroyed when changing to port reservation mode
and their participants dropped because
Any ad hoc conferences in progress will be destroyed when changing to port reservation mode
and their participants dropped because
mode.
Participant disconnection
Participants in a scheduled conference may be disconnected. For each conference, the maximum
port usage values (for unreserved mode) and the ports to reserve (for reserved mode) are
configured and stored separately. Therefore when changing port reservation mode, it is possible
that there are more active participants than allowed in the particular mode. In this case,
participants are disconnected to reduce the number to that allowed
Participants in a scheduled conference may be disconnected. For each conference, the maximum
port usage values (for unreserved mode) and the ports to reserve (for reserved mode) are
configured and stored separately. Therefore when changing port reservation mode, it is possible
that there are more active participants than allowed in the particular mode. In this case,
participants are disconnected to reduce the number to that allowed
.