Nortel Networks Circuit Card User Manual

 NT7D16 Data Access card

Issuing the On Hook command while the call is still ringing disconnects the 
incoming call. The DAC disconnects the call and notifies you with a NO 
CARRIER message.

When the S0 register is set to 0, the DAC is set to manual answer, and an 
inbound call must be answered with the Answer command. You can also 
abandon the call with the On Hook message, as in the Autodial sequence.

Off Line mode acts as a sort of Hold mode. Once the call is answered and the 
session begins, the Off Line command enables you to enter Hayes command 
modes. The Off Line sequence is transmitted to the far-end, but at the end of 
the sequence, the command mode is initiated. At this point, any Hayes 
command except Dial Number can be executed. Once the desired command 
is completed, you can return to the call through the On Line command.

The Guard Time (S12 register) defines the amount of time for no local input 
for the Off Line escape sequence to take place. If the S12 register is set to 0, 
enter the escape character defined in the S2 register. For a complete list of the 
parameters allowed for each S Register, see Table 162 on 

describing the S Registers.

RING

RING

NO CARRIER

RING

RING

NO CARRIER