Contents:
Dialing, Answering, and Hanging Up
Controlling Result Code Displays
Accessing and Configuring the Courier 56K Business Modem Remotely
Handshaking, Error Control, Data Compression, and Throughput
Displaying Querying and Help Screens
Dedicated/Lease Line and Synchronous Applications
Appendixes
Flow Control Template
Fax Information for Programmers
Courier 56K Business Modem Command Reference
Flow Control Template
Hardware Flow Control
The table below lists the Hardware flow control template. To load this template send AT&F1 to your modem.
|
NVRAM Options
|
Setting
|
Description
|
|
Handshake option
|
B0
|
ITU-T answer sequence |
|
Transmitter
|
C1
|
Enabled |
|
Command mode echo
|
E1
|
Enabled |
|
Online local echo
|
F1
|
Disabled |
|
Speaker volume
|
L2
|
Medium |
|
Speaker control
|
M1
|
ON during dial through connect |
|
Result codes
|
Q0
|
Enabled |
|
Verbal or numeric result codes
|
V1
|
Verbal result codes |
|
Result code subset
|
X7
|
Extended. Includes all codes except VOICE |
|
Protocol response codes
|
&A3
|
Full protocol codes |
|
Serial port rate select
|
&B1
|
Serial port rate fixed higher than connect rate |
|
Guard tone
|
&G0
|
U.S./Canada |
|
Transmit data hardware flow control
|
&H1
|
Hardware flow control |
|
Received data software flow control
|
&I0
|
Disabled |
|
Analogue data compression
|
&K1
|
Enabled |
|
Normal or leased lines
|
&L0
|
Normal lines |
|
Error control/sync
|
&M4
|
Normal/error control |
|
Highest Link rate select
|
&N0
|
Variable |
|
Pulse dialing type
|
&P1
|
U.S., Canada, and other countries |
|
Received data hardware flow control
|
&R2
|
Enabled |
|
Data Set Ready
|
&S0
|
Always on |
|
Remote Digital Loopback (RDL)
|
&T5
|
Deny RDL |
| Lowest Link rate select |
&U0
|
Variable |
|
Synchronous transmit clock timing
source
|
&X0
|
Modem |
|
Break handling
|
&Y1
|
Clear buffer, send immediately |
|
Synchronous Clock Speed
|
%N6
|
9600 bps |
|
Caller ID
|
#CID=0
|
Caller ID disabled |
|
Word length*
|
8
|
|
|
Parity*
|
0
|
None |
|
DTE rate* (Kbps)
|
19.2
|
_ |
* Detected by each modem from the AT prefix of the &W command that writes your defaults to NVRAM. Set your software to the desired word length, parity, and serial port rate defaults before sending the modem the AT... &W string.
Software Flow control
The table below lists the Software flow control template. To load this
template send AT&F2 to the modem. Items in bold denote the
changes to (or differences from) the &F1 template.
|
NVRAM Options
|
Setting
|
Description
|
| Handshake option |
B0
|
ITU-T answer sequence |
| Transmitter |
C1
|
Enabled |
| Command mode echo |
E1
|
Enabled |
| Online local echo |
F1
|
Disabled |
| Speaker volume |
L2
|
Medium |
| Speaker control |
M1
|
ON during dial through connect |
| Result codes |
Q0
|
Enabled |
| Verbal or numeric result codes |
V1
|
Verbal result codes |
| Result code subset |
X7
|
Extended. Includes all codes except VOICE |
| Protocol response codes |
&A3
|
Full protocol codes |
| Serial port rate select |
&B1
|
Serial port rate fixed higher than connect rate |
| Guard tone |
&G0
|
U.S./Canada |
| Transmit data hardware flow control |
&H2
|
Software flow control |
| Received data software flow control |
&I2
|
Enabled |
| Analogue data compression |
&K1
|
Enabled |
| Normal or leased lines |
&L0
|
Normal lines |
| Error control/sync |
&M4
|
Normal/error control |
| Highest Link rate select |
&N0
|
Variable |
| Pulse dialing type |
&P1
|
U.S., Canada, and other countries |
| Received data hardware flow control |
&R1
|
Enabled |
| Data Set Ready |
&S0
|
Always on |
| Remote Digital Loopback (RDL) |
&T5
|
Deny RDL |
| Lowest Link rate select |
&U0
|
Variable |
| Synchronous transmit clock timing source |
&X0
|
Modem |
| Break handling |
&Y1
|
Clear buffer, send immediately |
| Synchronous Clock Speed |
%N6
|
9600 bps |
| Caller ID |
#CID=0
|
Caller ID disabled |
| Word length* |
8
|
|
| Parity* |
0
|
None |
| DTE rate* (Kbps) |
19.2
|
_ |
* Detected by each modem from the AT prefix of the &W command
that writes your defaults to NVRAM. Set your software to the desired word
length, parity, and serial port rate defaults before sending the modem
the AT... &W string.
No Flow Control
The table below lists the No Flow Control template. To load this template send AT&F0 to the modem. Items in bold denote the changes to (or differences from) the &F1 template.
| NVRAM Options |
Setting
|
Description |
| Handshake option |
B0
|
ITU-T answer sequence |
| Transmitter |
C1
|
Enabled |
| Command mode echo |
E1
|
Enabled |
| Online local echo |
F1
|
Disabled |
| Speaker volume |
L2
|
Medium |
| Speaker control |
M1
|
ON during dial through connect |
| Result codes |
Q0
|
Enabled |
| Verbal or numeric result codes |
V1
|
Verbal result codes |
| Result code subset |
X1
|
Basic |
| Protocol response codes |
&A1
|
ARQ protocol codes |
| Serial port rate select |
&B0
|
Variable serial port rate |
| Guard tone |
&G0
|
U.S./Canada |
| Transmit data hardware flow control |
&H0
|
Disabled |
| Received data software flow control |
&I0
|
Disabled |
| Analogue data compression |
&K1
|
Enabled |
| Normal or leased lines |
&L0
|
Normal lines |
| Error control/sync |
&M4
|
Normal/error control |
| Highest Link rate select |
&N0
|
Variable |
|
Pulse dialing type
|
&P1
|
U.S., Canada, and other countries |
| Received data hardware flow control |
&R1
|
Disabled |
| Data Set Ready |
&S0
|
Always on |
| Remote Digital Loopback (RDL) |
&T5
|
Deny RDL |
| Lowest Link rate select |
&U0
|
Variable |
| Synchronous transmit clock timing source |
&X0
|
Modem |
| Break handling |
&Y1
|
Clear buffer, send immediately |
| Synchronous Clock Speed |
%N6
|
9600 bps |
| Word length* |
7
|
|
| Parity* |
1
|
Even |
| DTE rate* (Kbps) |
9600
|
_ |
* Detected by each modem from the AT prefix of the &W command
that writes your defaults to NVRAM. Set your software to the desired word
length, parity, and serial port rate defaults before sending the modem
the AT... &W string.