user manual

Chapter 3 – Fax Class 2 Commands
Multi-Tech Systems, Inc. SocketModem MT5634SMIxx Reference Guide (S000263C) 99
Answer and receive a two-page facsimile with V.34 half-duplex (Class 2.1)
Host
Commands
Modem
Responses
Local Modem
Action
Remote Station
Action
Notes
AT+FCLASS=2.1 OK Set class 2
AT+FIS=,D,,,,3,
,,,
OK
Set for Rec. V.34,
Annex A/T.30,
Annex C/T.30 or
Annex F/T.30
select max rate
of 33
600 bit/s
RING detect ringing off-hook, dial
ATA
+FCO
OK
answer
detect CNG
send ANSam
get CM
send JM
get CJ
negotiate Rec. V.34
begin control channel
send DIS
send CNG
detect ANSam
send CM
get JM
send CJ
negotiate Rec. V.34
begin control channel
get DIS
Rec. T.30 selected
with JM signal from
remote terminal
the remote indicated
28
800 bit/s ability
AT+FDT
+FCS:,B,,,,1,,,,
CONNECT
<1st page data>
<DLE><ETX>
+FPS:1,<lc>,0,0
,0
+FET:0
OK
get DCS
send CFR
switch to primary
channel
get page 1 FCD
switch to control
channel
get MPS
send DCS
get CFR
switch to primary
channel
send page 1 FCD
switch to control
channel
send MPS
in this example,
28
800 bit/s is
selected
AT+FDR
CONNECT
<2nd page data>
<DLE><ETX>
+FPS:1,<lc>,0,0
,0
+FET:2
send MCF
switch to primary
channel
get page 2 FCD
switch to control
channel
get EOP
get MCF
switch to primary
channel
send page 2 FCD
switch to control
channel
send EOP
AT+FDR
+FHS:00
OK
send MCF
get DCN
hang-up
get MCF
send DCN
hang-up