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BOCA PRO16 Reference Guide
If you are still in doubt, use pulse dialing. Most exchanges supporting
tone dialing also support pulse dialing, although the reverse is not
always true. Contact the supplier of your telephone line if you wish to
have tone dialing accessible on your line.
FPulse dialing may not be supported in New Zealand. Refer to your
Installation Guide for details.
R reverse mode
This modifier enables you to switch to answer mode after dialing. When
connecting to another modem, one modem must be in originate mode and
the other in answer mode to establish a connection. When you use a dial
command, your modem is normally in the originate mode.
The R dial modifier enables you to connect to originate only modems.
This is also useful when you want to send information at 1200/75 bps
(CCITT V.23 standard communications).
If you communicate with another computer in originate mode at 1200/
75 bps, you will be sending data at 75 bps and receiving at 1200 bps. If
you have a lot of information to send and not much to receive, it makes
sense to switch to answer mode, so that you are sending at the faster rate.
For example:
To dial the number 999-9876 and switch to answer mode:
• Type: ATD9999876R <E>
@ wait for quiet answer
The @ modifier orders the modem to wait for one or more rings within
the time specified by S Register 7, followed by a period of five seconds
of silence occurring some time before dialing the remaining numbers in
a phone number.
The default value of S Register 7 is 30. Using this default, the modem will
dial the first number, listen for a period of five seconds silence during the
next 30 seconds and then, if the silence is detected, dial the next part of
the number.
If five seconds of continuous silence is not detected, the modem will
hang up and return a message: NO ANSWER
Command Descriptions
Command
Descriptions
pro16ref.pm6 6/14/96, 2:37 PM90
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