User's Manual

Hn Hook Control

This command instructs the modem to go on-hook to disconnect a call, or off-hook to

make the phone line busy.

H0 Modem goes on-hook (default).

H1 Modem goes off-hook.

Result Codes:

OK: n = 0, 1

ERROR: Otherwise

In Request Identification Information

This command displays specific product information about the modem.

I0 Returns product ID code.

I1 Display Firmware version and checksum on the DTE.

I2 Customer Used.

I3 Returns fix ID information for application software identification.

“TP560 Data/Fax/Voice 56K Modem”

I4 Returns firmware version for data pump.

I5 Returns country code.

I6 Return Local Phone Status (Loop Current Detection)

0: On-hook, 1: Off-hook

Result Codes:

n = 0, 1, 2, 3, 4, 5,6

ERROR: Otherwise

Ln Monitor Speaker Volume

This command sets speaker volume to low, medium, or high.

L0 Select low volume.

L1 Select low volume.

L2* Select medium volume.

L3 Select high volume.

Result Codes:

OK n = 0, 1, 2, 3

ERROR Otherwise