Maxim Integrated Teridian V.22 bis Linux Softmodem for 73M1822/73M1922 MicroDAA - Manual (Page 47)

UG_1x22_043 V.22 bis Linux Softmodem for 73M1x22 MicroDAA User Guide
Rev. 1.5 47
 1 Verbose result codes

Bit 4 0 No match
1 First cadence of double cadence matched
Bit 5 0 Touch tone dialing
 1 Pulse dialing
 Bit 6 0 Not connected
1 Connected
Bit 7 0 Answer
 1 Originate
S21 General Modem Status Register 2
 1 See following.
Bit Value
Bit 0 0 Keypress abort disable.
 1 Keypress abort enable.
 Bit 1 0 Use debounced carrier detect
1 Use raw carrier detect (set by C2 command).
 Bit 2 0 Disable V.23 turnaround via DTR toggle.
1 Enable V.23 turnaround via DTR toggle (set by R4 command).
 Bits 4/3 00 Modem ignores DTR (Default) (R0)
01
Modem assumes the Command State when DTR transitions from
ON to OFF (R1).
10
Modem goes on hook, disables Auto Answer and assumes the
Command State when DTR transitions from ON to OFF (Auto
Answer can be enabled by transitioning DTR from OFF to ON) (R2).
11 Modem is reset when DTR transitions from ON to OFF (R3).
 Bit 5 0 DCD always ON (equivalent to C0 command).
1 DCD ON indicates the presence of CD (equivalent to C1 command).
 Bit 6 0 No RTS / CTS DTE flow control.
1 RTS / CTS DTE flow control (equivalent to K3).
 Bit 7 0 No XON / XOFF DTE flow control.
1 XON / XOFF DTE flow control (equivalent to K4).