Cisco Cisco TelePresence Video Communication Server Expressway 관리 매뉴얼
Dial plan and call processing
Field
Description
Usage tips
Calls to
unknown
IP
addresses
unknown
IP
addresses
Determines the way in which the Cisco
VCS attempts to call systems which are
not registered with it or one of its
neighbors.
VCS attempts to call systems which are
not registered with it or one of its
neighbors.
Direct: allows an endpoint to make a call
to an unknown IP address without the
Cisco VCS querying any neighbors.
The call setup would occur just as it
would if the far end were registered
directly to the local system.
to an unknown IP address without the
Cisco VCS querying any neighbors.
The call setup would occur just as it
would if the far end were registered
directly to the local system.
Indirect: upon receiving a call to an
unknown IP address, the Cisco VCS will
query its neighbors for the remote
address and if permitted will route the call
through the neighbor.
unknown IP address, the Cisco VCS will
query its neighbors for the remote
address and if permitted will route the call
through the neighbor.
Off: endpoints registered directly to the
Cisco VCS may only call an IP address
of a system also registered directly to that
Cisco VCS.
Cisco VCS may only call an IP address
of a system also registered directly to that
Cisco VCS.
The default is Indirect.
This setting applies to the call's
destination address prior to any zone
transforms, but after any pre-search
transforms, Call Policy or User Policy
rules have been applied.
destination address prior to any zone
transforms, but after any pre-search
transforms, Call Policy or User Policy
rules have been applied.
In addition to controlling calls, this setting
also determines the behavior of
provisioning and presence messages to
SIP devices, as these messages are
routed to IP addresses.
also determines the behavior of
provisioning and presence messages to
SIP devices, as these messages are
routed to IP addresses.
See the
section for more
information.
Fallback
alias
alias
The alias to which incoming calls are
placed for calls where the IP address or
domain name of the Cisco VCS has been
given but no callee alias has been
specified.
placed for calls where the IP address or
domain name of the Cisco VCS has been
given but no callee alias has been
specified.
If no fallback alias is configured, calls that
do not specify an alias will be
disconnected. See below for more
information.
do not specify an alias will be
disconnected. See below for more
information.
About the fallback alias
The Cisco VCS could receive a call that is destined for it but which does not specify an alias. This
could be for one of the following reasons:
could be for one of the following reasons:
n
the caller has dialed the IP address of the Cisco VCS directly
n
the caller has dialed a domain name belonging to the Cisco VCS (either one of its configured SIP
domains, or any domain that has an SRV record that points at the IP address of the Cisco VCS),
without giving an alias as a prefix
domains, or any domain that has an SRV record that points at the IP address of the Cisco VCS),
without giving an alias as a prefix
Normally such calls would be disconnected. However, such calls will be routed to the Fallback alias
if it is specified.
if it is specified.
Note that some endpoints do not allow users to enter an alias and an IP address to which the call
should be placed.
should be placed.
Example usage
You may want to configure your fallback alias to be that of your receptionist, so that all calls that do not
specify an alias are still answered personally and can then be redirected appropriately.
specify an alias are still answered personally and can then be redirected appropriately.
For example, Example Inc has the domain of example.com. The endpoint at reception has the alias
reception@example.com. They configure their Cisco VCS with a fallback alias of
reception@example.com. They configure their Cisco VCS with a fallback alias of
Cisco VCS Administrator Guide (X6)
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