2400 BPS Internal Modem  (250-1037)     Features       Faxback Doc. # 4693

ATTENTION:  XENIX AND 3COM USERS

XENIX and 3COM use DTR (Data Transmission Ready) to turn the modem on and 
off.  Upon power-up or when the modem receives the ATZ command, it defaults 
to &D0, which means the modem ignores DTR.  You must enable the &D2 command 
in your modem so that DTR can hang up the phone.  When DTR is disasserted, 
the modem goes on-hook and assumes command upon detecting an on-to-off 
transition on DTR.


(smm 07/28/93)