Configuring Tei Treatment On The Bri Interface; Configuring Isdn Bri Leased Line; Configuring Permanent Link Function On Isdn Bri Link Layer - 3Com MSR 50 Series Configuration Manual

432 C 22: ISDN C
HAPTER
Configuring TEI
Treatment on the BRI
Interface
Configuring ISDN BRI
Leased Line
n
Configuring Permanent
Link Function on ISDN
BRI Link Layer
ONFIGURATION
Follow these steps to configure TEI treatment on the BRI interface:
To do...
Enter system view
Enter specified BRI interface
view
Request the switch for a new
TEI each time a B channel on
the BRI interface places a call.
ISDN leased lines are implemented by establishing MP semi-permanent
connections. This requires that the PBXs of your telecommunication service
provider provide leased lines and are connected to the remote devices.
Follow these steps to configure ISDN BRI Leased Line:
To do...
Enter system view
Enter specified BRI interface
view
Configure the B channel for
ISDN leased line connection.
Before you can use this command, you must configure C-DCC.
■
For description of DCC configuring, refer to
■
To enable a BRI interface to set up the Q.921 link automatically and maintain the
link permanently even when no calls are received from the network layer, you may
configure the isdn q921-permanent command. If the two-tei mode is also
configured on the interface, two such links will be present.
You may need to configure permanent Q.921 link mode where the ISDN NI
protocol is adopted to ensure the success of every call attempt.
Follow these steps to configure Q.921 permanent link mode for an ISDN BRI
interface:
To do...
Enter system view
Enter specified BRI interface
view
Set the Q.921 link on the BRI
interface in permanent state.
Use the command...
system-view
interface bri
interface-number
isdn two-tei
Use the command...
system-view
interface bri
interface-number
dialer isdn-leased { 128k |
number }
"DCC Configuration" on page
Use the command...
system-view
interface interface-type
interface-number
dialer isdn-leased { 128k |
number }
Remarks
-
-
Optional
All B channels on the BRI
interface use the same TEI by
default.
Remarks
-
-
No B channel on the ISDN BRI
interface is configured for
leased line connection by
default.
153.
Remarks
-
-
Required
The Q.921 links on BRI
interfaces are not in
permanent state by default.