Configuring ISDN ports settings
Cisco TelePresence ISDN Gateway 2.1 Online help (Printable format) 77 of 135
Configuring ISDN ports settings
The options that are available to you when you are configurin g ISDN ports depend on whether or not
the Cisco TelePresence ISDN Gateway is in leased line mode. (L eased line mode is configured on the
Settings > ISDN page.)
Select the help topic that you need:
Configuring ISDN ports settings
Configuring ISDN ports settings in leased line mode

Configuring ISDN ports settings (non-leased line mode)

These settings affect the per-port ISDN configuration of the ISDN G ateway. Use these settings to
configure ISDN ports to the requirements of your ISDN net work. To access these settings, go to
Settings > ISDN ports.
Note that some ISDN configuration must be done on a bla de-wide basis; see Configuring general
ISDN settings.
You can configure multiple ports at once. After making changes , click Apply changes to update the
settings for the port(s).
Refer to the table below for assistance with configuring the ISDN ports settings.

Port settings

Field
Field description Usage tips
Enabled
Whether this port may be used to make
and receive ISDN calls.
Overlap
receiving
number
length
Specify the number of digits that a caller
will dial before the ISDN Gatewa y will
apply the dial plan and make the IP part
of the call.
When the ISDN Gateway has received
that number of dialed digits, it will
connect the call immediately.
If you do not want to use overlap
receiving, enter 0 to disable this feature.
Overlap receiving ensures that the ISDN
Gateway waits for all dialed digits before
connecting the call. To use overlap
receiving, it must be supported by your
ISDN infrastructure.
When overlap receiving is enabled, the
ISDN Gateway can collect a series of
dialed digits sent from an endpoint
before it starts the IP leg of the call.
Overlap receiving is configured on an
individual PRI port basis.
Note that this setting is not available
when the ISDN Gateway is operating in
leased line mode.
Directory
Number (DN)
The directory number of this ISDN port.
Enter the phone number of this port, as
assigned by your ISDN network
provider. In many applications, all ISDN
ports will share a common directory
number; this is referred to as the ports
being part of a hunt group. Incoming