Maxim Integrated Teridian V.22 bis Linux Softmodem for 73M1822/73M1922 MicroDAA - Manual (Page 41)

UG_1x22_043 V.22 bis Linux Softmodem for 73M1x22 MicroDAA User Guide
Rev. 1.5 41
S109 Delay between series
N 0 – 254 in minutes

0 Disabled – only 1 series allowed
Sets the delay before another series of call attempts is allowed.
Answering functions
S123 Software Ring Detect
This register controls the ring amplitude threshold and selects hardware or software ring
detection. (Default = 0)
Bits 0-6
Ring Amplitude Detection Threshold. Lower value detects lower amplitude ring
signal.
Bit 7
1 = No frequency checking, enables phonex operation
0 = Frequency and amplitude checking, normal operation.
Special Values for S123:
=0 Disable soft ring detect, use hardware ring.
=255
Auto detect phonex mode, the modem will automatically detect an user phonex
system and configure itself accordingly.
=1–127
Force soft ring detection with frequency qualification for non-Phonex operation.
Recommend value of 7 (or 2 for very Low Amplitude and Frequency detection).
128–254
Force soft ring detection with no frequency qualification for Phonex operation.
Recommend value of 170.
S17 Ring / Minimum Frequency Detection
n 0 – 253 in Hz
 10 10 Hz
Assumes a half wave detection circuit.
Note: The values need to be doubled if a full wave detector is used.
Country selection
dependent (S99)