ISDN Configuration Commands
275
In the event that the router is communicating with an ISDN exchange, its settings
must be the same as those on the exchange.
You are not allowed to configure this command on an ISDN interface if there is still
a call on it. This command can take effect only if it is configured when there is no
call on the interface. Alternatively, you can manually disable the interface by
executing the shutdown command, configure the command, and then enable the
interface by executing the undo shutdown command. The operations, however,
will lead to the disconnection of the call existing on the interface.
Example
Configure ISDN to carry the HLC information element in the SETUP messages for
the voice calls placed on the Bri interface 0/0/0.
[3Com-Bri0/0/0] isdn ignore hlc
isdn ignore llc
Syntax
isdn ignore llc
undo isdn ignore llc
View
ISDN interface view
Parameter
None
Description
Using the isdn ignore llc command, you can disable ISDN to carry the Lower Layer
Compatibility (LLC) information element in the SETUP messages sent when placing
voice calls. Using the undo isdn ignore llc command, you can configure ISDN to
carry the LLC information element in SETUP messages.
By default, LLC information element is carried in SETUP messages when placing
voice calls.
In the event that the router is communicating with an ISDN exchange, its settings
must be the same as those on the exchange.
You are not allowed to configure this command on an ISDN interface if there is still
a call on it. This command can take effect only if it is configured when there is no
call on the interface. Alternatively, you can manually disable the interface by
executing the shutdown command, configure the command, and then enable the
interface by executing the undo shutdown command. The operations, however,
will lead to the disconnection of the call existing on the interface.
Example
Disable ISDN to carry the LLC information element in the SETUP messages for the
voice calls placed on the interface Bri 0/0/0.
Содержание Router 3031
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