    =

    AST RESEARCH, INC.          TECHNICAL BULLETIN # 1191                  DATE

    =

    ADVANTAGE! ADVENTURE 14.4 MODEM CONNECTION PROBLEMS

    PROBLEM

    The Advantage! Adventure system may be unable to connect to on-line services
    at 14,400 baud rate.

    CAUSE

    The factory default initialization string settings for the Advantage!
    Adventure modem at times have difficulty connecting at 14,400 baud rate.
    The quality of the telephone line may not be sufficient to allow reliable
    communications over the full bandwidth expected by the modem, even with line
    compensation.  For example, the telephone line may be affected by weather
    conditions, static noise, etc.  In such cases, this modem incorporates
    fallback capabilities.  When the top speed does not work, the modem attempts
    to communicate at lower speeds that are less critical of telephone line
    quality.

    SYSTEMS AFFECTED

    Any Advantage! Adventure systems that use modem part number 202640-005.

    SOLUTION

    The initialization strings (listed below) for the Starbright modem
    (P/N#202640-005), used with the following communication software, may improve
    the connection at the modem's baud rate:

    Prodigy         AT E0 X4 \N0 \Q3 \G0 %C0

    CompuServe      AT S0=0 Q0 V1 \N0 \Q1^M
    			 ERROR CORRECTION ENABLE   \N3 %C0
    			 DATA COMPRESSION DISABLE  \N3

    Viewpoint       ATZ AT &C1 &D2

    Winfax Lite     AT &F &C1 &D2 S7=55\
    Alternate       AT &FCLASS=2
    Generic String  AT &F &C1 &D2