Jaton Communicator V.90 - Manual (Page 57)

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“Hn V.42 bis compression control (Default=3)
“H0 Disables V.42 bis
“H1 Enables V.42 bis only when transmitting data
“H2 Enables V.42 bis only when receiving data
“H3 Enables V.42 bis for both transmitting and receiving data
“On V.42 bis string length (Default=32)
Fax Class 1 AT Commands
Your modem implements the EIA-578 dada/fax Class 1 AT command set
standard. This AT command set allows a DTE (with Class 1
communication software) and a INTEL / AMBIENT MD34xx based
modem to communicate with group 3 fax machines. The fax identity and
test commands listed below.
Table 3. Fax Identity Commands
Command Function
+FMFR? Identify modem manufacturer
+FMDL? Identify product model
+FMI? Identify modem manufacturer
+FMM? Identify product model
+FMR? Identify product version number
+FREV? Identify product version number
Table 4. Fax Class 1 AT Commands
Command Function Range
+FCLASS=1 Mode selection (Default=0) 0, 1, 8, 80
+FAE=n Fax/data auto-recognition
(Default=0) 0, 1
+FRH=n Receive HDLC data 3
+FRM=n Receive data 24, 48, 72, 73, 74,
96, 97, 98, 121,
122, 145, 146