Avaya Configuring WAN Line Services Bedienungsanleitung Seite 65

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Configuring Synchronous Services
117345-B Rev. 00
2-31
You can set the B channel to one of the following:
DEFAULT
BCHANNEL1
BCHANNEL2
FLOATINGB
If your ISDN service provider offers only 2B + D service, the FLOATINGB
option enables you to use only one B channel for dial service applications.
Floating B is an alternative if you cannot purchase 1B + D service.
Select FLOATINGB to use only one B channel of ISDN, which becomes
BCHANNEL1 or BCHANNEL2, depending on the call setup procedures. COM1
and COM2 become available in this mode.
Configure the B channel on an AN or ANH ISDN interface.
Using Site Manager
See the Sync B Channel Override parameter on page A-71 for information.
Setting the IFTF Pattern
The router transmits an interframe time fill (IFTF) pattern when there is no data to
transmit on a synchronous line. There are two IFTF patterns:
HDLC Flags, an 0x7E pattern (0 1 1 1 1 1 1 0)
Idles, an 0xFF pattern (1 1 1 1 1 1 1 1)
HDLC Flags is the default IFTF pattern for all synchronous media types except
ISDN BRI. For ISDN BRI, the default pattern is Idles. To use these defaults, leave
the Sync Force IFTF parameter set to Default. Or, you can override the defaults by
setting this parameter to Force Flags or Force Idles.
For a dial-on-demand interface, set the Sync Force IFTF parameter to Force Idles.
Using Site Manager
See the Sync Force IFTF parameter on page A-71 for information.
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