User`s manual

AT Command Reference Manual
1048 5-7
Table 5-2. Fax Class 1 Calling 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) ATDT6163 (4) Dials (5) Answers +FRH=3 implied by dialing
(6) CONNECT (7) Send HDLC flags
PHASE B
(8) Send NSF frame
(9) <NSF>,OK
(10) AT+FRH=3 (11) CONNECT
(12) Send CSI frame
(13) <CSI>,OK
(14) AT+FRH=3 (15) CONNECT
(16) Send DIS frame Last frame bit = 1
(17) <DIS>,OK (18) Drop carrier
(19) AT+FTH=3 (20) Send HDLC flags (21) Receive flags
(21) CONNECT
(22) <TSI> (23) Send TSI frame (24) Receive TSI Last frame bit = 0
(25) CONNECT
(26) <DCS> (27) Send DCS frame (28) Receive DCS Last frame bit = 1
(29) Detect last frame bit
(39) OK, drop carrier
(31) AT+FTS=8 (32) OK, wait 80 ms
(33) AT+FTM=96 (34) Send V.29
(35) CONNECT
(36) <TCF> (37) Send TCF data (38) Receive & check
(39) OK
(40) AT+FRH=3 (41) CONNECT
(42) Send CFR frame Last frame bit = 1
(43) <CFR>,OK (44) Drop carrier
(45) OK
PHASE C
(46) AT+FTM=96 (47) Send V.29
(48) CONNECT
(49) age data (50) Send page data (51) Receive data
(52) OK
(53) AT+FTH=3 (54) Send HDLC flags (55) Receive flags
(56) CONNECT
PHASE D
(57) <EOP> (58) Send EOP frame (59) Receive EOP Last frame bit = 1
(60) OK, drop carrier
(61) AT+FRH=3 (62) CONNECT
(63) Send MCF frame Last frame bit = 1
(64) <MCF>, OK
(65) AT+FTH=3 (66) Send HDLC flags (67) Receive flags
(68) CONNECT
(69) <DCN> (70) Send DCN frame (71) Receive DCN Last frame bit = 1
(72) OK, drop carrier
PHASE E
(73) ATH0 (74) OK, hang up (75) Hang up