USRobotics V.34 User Manual

Page 68

COURIER HIGH SPEED MODEMS

Data Mode Operations 4-31

This command sets the ratio of the off-hook/on-hook (make/
break) interval for pulse dialing. The default sets the modem
for use in North America. The ratio must be changed if the
modem is used in the United Kingdom and some Common-
wealth countries.

&P0 Make/break ratio, U.S./Canada: 39%/61%. Default.

&P1 Make/break ratio, United Kingdom, some

Commonwealth countries: 33%/67%.

MISCELLANEOUS COMMANDS

Transmitter enabled/disabled.

Transmitter disabled; receive-only condition.

Transmitter enabled. Default.

Modem clock operation: Call-duration or Real-time mode.
Displayed with ATI3 and ATI6 commands.

Display current call-duration if online. Display
last call-duration if offline. Default.

Return actual time at ATI3. Clock is set using
ATI3=HH:MM:SS K1.

Break handling. This command allows you to send a break to
abort data transfer without disconnecting from the phone link.

&Y0 Destructive, don't send Break.

&Y1 Destructive, expedited (Default).

&Y2 Nondestructive, expedited.

&Y3 Nondestructive, unexpedited; modem sends Break in

sequence with data received from computer or terminal.

NOTE: If the call is under MNP5 data compression, destructive
Breaks cause both modems to reset their data compression
tables. When transmission resumes, the modems build new
tables, and the result is lower than normal throughput.