capability. Most IBM compatibles are capable of 19,200 bps under DOS and Windows. Operating at higher speeds under Windows requires a faster CPU (386/486 or better).

Modem experiences bursts of errors or suddenly disconnects while communicating with a remote modem.

1.Make sure Call Waiting is turned off.

2.Make sure the phone line does not exhibit excess noise.

Modem exhibits poor voice record or playback.

1.Make sure the correct modem type is selected in the Voice/ FAX software. Use “ Sierra” or similar selection. Do not select “Rockwell or Rockwell ICS” configuration.

Section Seven

- Specifications

CCITT/Bell Std.

V.42bis, V.42, V.32bis, V.32, V.29,

 

V.27ter, V.22bis, V.22, V.21, V.17,

 

Bell212/103

MNP protocols:

MNP 5, 4, 3, 2

Host Interface:

16-bit PC bus

COM ports:

1, 2, 3, 4

IRQ lines:

3, 4, 5, 7, 9, 10, 11, 12

FAX Group:

Group III Send/Receive Standard

FAX Command set: EIA/TIA-PN2388 Service Class 2

Voice Command set: Sierra

Escape Detection:

TIES Escape Sequence

Transmit level:

-11 dBm +/- 1 dBm

Receiver Sensitivity: -43 dBm

UART:

16550 compatible

Data format:

300-57600 bps

Power:

0.75 W

Temperature:

0 to 55 degrees C (Operating); -20 to 80

 

degrees C (Non-operating)

Speakerphone:

Full-duplex with DSP echo cancellation

Plug and Play

ISA spec. V1.0a

Section Eight - Support and Service

In the unlikely event you experience difficulty in the use of this product, we suggest you: (1) consult the Troubleshooting section of this guide and (2) consult with your dealer. To obtain service for this product, follow the Return Merchandise Authorization Proce- dure as outlined in the Warranty card.

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Acer Modemconte user manual Section Eight Support and Service, Modem exhibits poor voice record or playback