Avaya Configuring WAN Lines Services Manual do Utilizador descarregar pdf (Página 78)

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101

Configuring WAN Line Services

2-30

308648-14.00 Rev 00

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 the BCC

To specify the B channel override, navigate to the serial prompt (for example,

box

;

serial/2/1

) and type:

bchannel-override

variable

For example:

serial/2/1#

bchannel-override bchannel2

Using Site Manager

See the Sync B Channel Override parameter on page A-85 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)

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