Send and Receive Modem

If you need to place and receive calls with the modem, use the setup shown in Figure 4-10. This setup makes line A the primary modem line, but keeps the line available for users at other extensions when all other lines are busy.

Modem

Line A

Lines

CONTROL

 

 

 

 

UNIT

Ext x

MODEM

Figure 4-10. Send and Receive Modem

To Use

Calls on the modem line (line A) ring only at extension X. Likewise, line A is the Iast line selected by other extensions in the system, so the modem line is unavailable for the modem only when all other lines in the system are being used.

To Program

1.Set Automatic Line Selection for all other extensions so that line A is the last line in the select sequence. That way, the modem line is used for outgoing voice calls only when all other lines are busy.

2.Set Line Ringing for all lines assigned to extension X to No Ring.

3.Use Line Assignment (#301) to assign one or more lines to extension X.

4.Set Automatic Extension Privacy (#304) for extension X to Assigned.

4-20Using Auxiliary Equipment

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AT&T 518-455-317 manual Send and Receive Modem