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
Fax Information for Programmers
Courier 56K Business Modem Command Reference
Fax Information for Programmers
- Fax Service Class 1 Commands
- Fax Service Class 2.0 Commands
- Fax Mode Flow Control Setting
- FCC Notice
- Notes
Fax Service Class 1 Commands
| +FCLASS? | What mode is in use Data or Fax? |
| +FCLASS=n (0,1,2.0) | Class identification and control. |
| +FCLASS=? | What Fax class is in use? |
| +FTS=n (0,255) | Stop transmission and pause, 10 ms. |
| +FRS=n (0,255) | Wait for silence, 10 ms. |
| +FTM=n (3,24,48,72,73,74,96,121,122,145,146) | Transmit data with carrier. |
| +FRM=n (3,24,48,72,73,74,96,121,122,145,146) | Receive data with carrier. |
| +FTH=n (3,24,48,72,73,74,96,121,122,145,146) | Transmit HDLC data with carrier. |
| +FRH=n (3,24,48,72,73,74,96,121,122,145,146) | Receive HDLC data with carrier. |
Fax Service Class 2.0 Commands
In addition to the standard Class 2.0 fax commands, USRobotics implements the following optional Class 2.0 fax commands:
| +FNS=0,1 | Pass-through, non-standard negotiation byte string |
| +FCR=0,1 | Capability to receive. |
| +FAA=0,1 | Adaptive Answer mode. |
| +FCT=0-255 sec. | Phase C Timeout |
| +FHS=0-255 | Hangup Status Code, read only. |
| +FMS=0-3 | Minimum Phase C Speed. |
| +FBS?=500,100 | Buffer size, read only. |
Fax Mode Flow Control Setting
Many facsimile software products use software flow control when the modem is in Fax mode. Throughout our documentation, we recommend that you use hardware flow control for Data mode (factory setting). However, to allow compatibility with software products that use software flow control by default, USRobotics fax modems automatically change to software flow control when entering Fax mode.
FCC Notice
FCC part 68, rules regarding fax operation, has been amended as follows:
Telephone facsimile machines identification of the sender of the message:
It shall be unlawful for any person within the United States to use a
computer or other electronic device to send any message via a telephone
facsimile machine unless such a message clearly contains, in a margin
at the top or bottom of each transmitted page or on the first page of
the transmission, the date and time it is sent and an identification of
the business, other entity, or individual sending the message and the
telephone number of the sending machine or of such business, other entity,
or individual. Telephone facsimile machines manufactured on and after
December 20, 1992 must clearly mark such identifying information on each
transmitted page.
Notes
If you want to know more about the supported Class 1 fax commands, refer
to the standard for the Service Class 1 fax protocol:
TIA/EIA-578-1990 (EIA-578)
Asynchronous Facsimile DCE Control Standard - Service Class 1
November 1990 Revision: B
For more information on Class 2.0, refer to the standard for the Service
Class 2.0 fax protocol:
TIA/EIA-592-1998 (EIA-592)
Asynchronous Facsimile DCE Control Standard - Service Class 2
April 1998 Revision: A
You can obtain copies of these standards by contacting Global Engineering
Documents at (800) 854-7179.