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

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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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Contents Contents Hardware Installation Section Two InstallationSection One Introduction Unpacking Your ModemFasten the retaining Plug and PlayUsing Fax, Voice, and Speakerphone Capabilities of the Modem Software Installation/ConfigurationUsing Your Modem Testing Your Modem After InstallationWhere To Go From Here Executing CommandsBasic AT Commands Command StructureBold text Command Function Bell modeCommands are echoed Commands are not echoedMedium speaker volume Pulse dialingExtended AT Commands Modem connects using MNP or Guard tone disabledForce DSR Signal High on RTS/CTS flow controlOn or reset Enable Trellis Coding @22bis auto-retrain enabled Zn=xFax Class 2 Commands Voice Mode Commands Register Function Range/units Default Speakerphone CommandsSection Four S Registers S RegistersSection Five Result Codes Modem does not dial Section Six TroubleshootingModem does not respond to commands High pitch tone is heard whenever you answer the phone Modem dials but does not connectModem makes a connection but no data appears on your screen Modem exhibits poor voice record or playback Section Eight Support and ServiceFCC Class B Statement Section Nine FCC , DOC & Other NoticesFCC Compliance Disclaimer, Copyright, And Other Notices DOC Compliance InformationGZ/DR Version