What is required at the client-side?

For K56flex modem operation, the client-side modem must be operating with K56flex v1.0 software or higher. In many cases this will mean that the client-side modem will require a flash upgrade and, in a small base of modems, a hardware exchange may be necessary.

To determine if a client-modem is K56flex operational, a user can place the modem in the command mode and communicate directly with the modem using the AT command syntax. To enter AT commands you must attach your modem to a computer's serial port and enter commands directly from terminal emulation software such as Windows 95's HyperTerminal program. To use AT commands in terminal mode to verify software version, do the following:

1. Start your data communications program.

2. At the screen prompt type in ATi3 followed by a carriage return (or enter).

3. Note the modems response on the computer screen.

4. If the modem responds with V1.0-56K_DLS (or higher), a K56flex modem connection is possible.

5. If the modem responds with an earlier version of software (such as V0.519-K56_DLS), please contact the modem vendor's web site for the latest firmware upgrade.

Which client modems are compatible with the PortMaster 3?

Livingston has tested for interoperability with the following list of modems. As more modems are tested we will update this list.

Zoom/FaxModem 56Kx
- Firmware V1.0-56K_DLS

Motorola ModemSurfr K56
- Firmware V1.0-56K_DLS

Hayes Accura 56K + FAX
- Firmware V1.0-56K_DLS

SuperExpress 288 PnP
- Firmware V1.200-07-V34_DS Built July 18 1995

Practical Peripherals PM28800MT
- Firmware 1.63

Zoom V.34 plus
- Firmware V.1500 -V34_DS -a Z201

Practical Peripherals PM14400FXMT
- Firmware 2.17

BocaModem V.34+
- Firmware V1.510-V34_DS

Gateway 2000 Telepath 14.4k, Made by USR
- Firmware Supervisor 4.1, 6/27/94, DSP 10, 4/20/94

USR sportster 28.8
- Firmware Supervisor 6.0, 12/19/94, DSP 11.4 12/09/94

MicromCom 33.6k OfficePorte Voice
Same modem we send to customers as replacement.

Zoltrix V.34+ Fax Modem
- Firmware V2.061 US001-V34_ACF_DP1

USR 33600 Fax modem Internal
- Firmware EPROM 10.0.23 12/10/96 DSP 10.0.23 12/10/96

Cardinal Internal V34+
- Firmware V1.50-V34+DP Data/Fax

USR Sportster 14.4
- Firmware Supervisor 4.1, 6/27/94, DSP 10, 4/20/94
- Firmware Supervisor 4.1, 11/16/93,DSP 10, 11/16/93

Gateway Telepath Internal
- Firmware 1.5 000

Intel 144 _144e _Internal 14.4k as well
- Firmware V1.7 Rockwell RC144DP

USR V34+ Internal
- Firmware EPROM 3.12 8/16/96 DSP 3.12 8/16/96

Some Rockwell based V34+ modem
- Firmware V1.500-V34_DP -a Z201

Gateway 2000 Telepath II 14.4k/Fax V5.2 / USR
- Firmware Supervisor 5.2 12/09/94 DSP 11.2 09/07/94

USR 33.6 V32bis, VFC, V.34+
- Firmware 2.0 1/11/96

Texas Instruments RK 33600 Internal / USR Modem
- Firmware EPROM 1.4 11/22/95 DSP 1.4 11/22/95

Prometheus 14.4k RC140DPi Rev CA
- Firmware CES-03B- 940315

SupraExpress 336 PC
- Firmware V1.440-16-V34_DS Built: July 22, 1996 11:15:10

Microcom DeskPorte Fast ES 28.8
- Firmware V1.000-CS39 VFC RC288Dpi Rev 05BA
- Note Fastest Connect rate 14.4k, V.FC not supported

Motorola UDS
- Firmware 1.03.03

IBM Mwave Internal modem