Handshaking Options; Hanging Up; Making International Calls - 3Com 56K Command Reference Manual

Hanging up

Making
International calls

Handshaking options

If you want to end a connection with a remote device do the following:
1 Enter Online Command Mode by typing
2 Wait 1 second
3 Type
ATH
You can use the ATBn, AT&Gn and ATPn commands for making analog
international calls above 1200 bps.
The ATBn command controls the handshake options.
.
If you want your modem
To answer all V.34-type calls, as well as calls from overseas,
use ITU-T (formerly CCITT) answer sequence.
NOT to answer V.34-type calls. Use Bell answer tone. This
setting selects HST modulation.
Example: Sending
(selecting HST modulation).
+++
, will allow your modem to use Bell answer tone
ATB1

Making International calls

Command
ATB0 (Default)
ATB1
4-5