Rockwell RCV144ACx, Command Reference Manual

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AT Command Reference Manual
5-8 1048
Table 5-3. Fax Class 1 Answering Sequence (One Page)
DTE Commands DCE Responses
(Host) (Modem) Remote Fax Notes
(1) AT+FCLASS=1 (2) OK Set to Class 1
PHASE A
(3) FAX machine dials
(4) RING
(5) ATA (6) Modem answers
(7) Send HDLC flags (8) Receive flags +FTH=3 implied by
answering
(9) CONNECT
PHASE B
(10) <NSF> (11) Send NSF frame (12) Receive NSF Last frame bit = 0
(13) CONNECT
(14) <CSI> (15) Send CSI frame (16) Receive CSI Last frame bit = 0
(17) CONNECT
(18) <DIS> (19) Send DIS frame (20) Receive DIS Last frame bit = 1
(21) OK, drop carrier
(22) AT+FRH=3 (23) CONNECT
(24) Send TSI frame Last frame bit = 0
(25) <TSI>, OK
(26) AT+FRH=3 (27) CONNECT
(28) Send DCS frame Last frame bit = 1
(29) <DCS>, OK (30) Drop Carrier
(31) AT+FRM=96
(32) Send V.29
(33) CONNECT (34) Send TCF frame
(35) <TCF> (36) Drop carrier
(37) NO CARRIER
(38) AT+FTH=3 (39) CONNECT
(40) <CFR> (41) Send CFR frame (42) Receive CFR Last frame bit = 1
(43) OK, drop carrier
PHASE C
(44) AT+FRM=96
(45) Send page data
(46) <page data> (47) Drop carrier
(48) NO CARRIER
PHASE D
(49) AT+FRH=3 (50) CONNECT
(51) Send EOP frame Last frame bit = 1
(52) <EOP>, OK
(53) AT+FTH=3 (54) CONNECT
(55) <MCF> (56) Send MCF frame (57) Receive MCF Last frame bit = 1
(58) OK, drop carrier
(59) AT+FRH=3 (60) CONNECT
(61) Send DCN frame Last frame bit = 1
(62) <DCN>, OK
PHASE E
(73) ATH0 (74) OK, hang up (75) Hang up