User Manual

73M2901CE AT Command User Guide UG_2901CE_027
40 Rev. 2.0
4.4.75 S74 – Billing Delay Register
(Default = 20)
This register sets the durat ion of billing delay in units of 100ms. Range is 20 - 254.
4.4.76 S75 – Pre-Dial Call Progress Imprecise Detect Level
(Default = 30)
S75 determines at what minimum level imprecise call progress tones are detected before dialing. Range is
1 to 96. (a larger value corresponds to a lower signal level). The default value translate s into – 45 dBm.
The dBm level depends on the DAA used. The range is –25 to –45 dBm. Refer to the following table for
registers S75 – S78.
Detect Leve l
(dBm)
S75, S76, S77,
S78 Value
(decimal)
-25 3
-26 3
-27 4
-28 4
-29 5
-30 5
-31 6
-32 7
-33 8
-34 9
-35 10
-36 11
-37 12
-38 14
-39 15
-40 17
-41 19
-42 22
-43 24
-44 27
-45 30
4.4.77 S76 – Post-Dial Call Progress Imprecise Detect Level
(Default = 30)
S76 determines at what minimum level imprecise call progress tones are detected after dialing.
Range is 1 to 96. (a larger value corresponds to a lower signal level). The default value translates into –45
dBm. The dBm level depends on the DAA used. The range is –25 to –45 dBm. Refer to table under S78.