The modem

Someone probably hung up from another

connects itself

extension.

correctly to the

The modem detected a call waiting signal

remote modem, but

on the line. Contact the local tele-

the connection is

communications agency to find out how

interrupted during

to turn this signal off when you use the

communications

modem.

with the message:

 

NO CARRIER.

Try calling another modem to check if

 

the problem is general or unique to one

 

specific modem.

 

The telephone line is of low quality; try

 

communicating at a lower speed.

 

 

Connection problem

Some older modem models will not

with a 2400 bps

connect when the error correction protocol

modem.

is on. Turn this protocol off with the

 

following command:

 

0,66,1*￿&200$1'

 

 

High speed data

Check if there are any time-share

transmission failed.

applications or programs working in

 

parallel to the communications application.

 

The quality of the telephone line is too

 

low to withstand high-speed data transfer;

 

decrease the modem's transmission

 

speed.

 

 

International

Because of the length of the number

connections cannot

dialed and the differences in telephone

be made.

networks, it may be the case that some

 

digits do not get interpreted during the

 

dialing process. Insert commas between

 

parts of the dialing number in order to

 

create pauses.

 

For example, if you are calling 123456789,

 

insert commas and dial 1,23,456789

 

instead.

 

 

Calls to foreign

Increase the amount of time to wait for

countries terminate

a carrier signal. In terminal mode, type

with a ‘NO CARRIER’

ATS7=60 and press the Enter key. The

message.

range of acceptable values is country-

 

dependent.

24 Sportster Winmodem 33600 & x2/56K - User's manual

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USRobotics x2/56K Modem, Connects itself, Correctly to, Remote modem, but, Connection is, Interrupted during, Be made