If both modems exchange carrier signals but fail to establish a data communications
link. (cont.)
When the call is finished, reset the modem by:
1.Typing ATZ
2.And then pressing the ENTER key. Make sure you’ve set your software to the same data format (word length, parity, and number of stop bits) required by the modem you’re trying to connect with and, if your modem is dialing out, that your software is set to a baud rate equal to or higher than that of the other modem.
NOTE: Using a data format different from the other modem’s can alter data. If you cannot call to find out the other modem’s data format, trying the following data formats in this order:
∙Make sure your modem’s connection rate isn’t locked. The default of &N0 (the last character is zero), the variable connection rate, lets the two modems negotiate the best possible connection rate. (See &Nn in the Commands chapter.)
∙Make sure the modem is in the right mode for what you’re trying to do:
∙Data mode for a data call.
∙Fax mode for a fax call.
28 Sportster Winmodem 33600 & x2/56K - User's manual