ATA Voice Field Reference
Line page
Cisco Small Business ATA Administration Guide
International Control section (SPA8800)
FXO Port
Impedance
Ring Frequency Min The lower limit of the ring frequency used to detect the ring
SPA To PSTN Gain
Ring Frequency
Max
PSTN To SPA Gain
Ring Validation
Time
Desired impedance of the FXO Port. Choose from {600,
900, 370+620, 270+750||150nF, 220+820||120nF, 370
+ 620 || 310nf, 320 + 1050 || 230nf, 370 + 820 || 110 nf,
275 + 780 || 115nf, 120 + 820 || 110nf, 350 + 1000 ||
210nf, 0 + 900 || 130nf}
The default is 600.
The impedance values for various countries follows:
US600
EU (UK, Germany, Netherlands, Sweden, Norway, Italy,
Spain, Portugal, Poland, and Denmark)270+750|| 1 50nF
France270+750|| 1 50nF
220+820||120nF
370+620|| 3 10nF
signal.
The default is
.
dB of digital gain (or attenuation if negative) to be applied
to the signal sent from the SPA to the PSTN side. The range
is -15 to 12.
The default is 0.
The higher limit of the ring frequency used to detect the
ring signal.
The default is
.
dB of digital gain (or attenuation if negative) to be applied
to the signal sent from the PSTN side to the SPA. The range
is -15 to 12.
The default is 0.
Specify the minimum signal duration required by the
Gateway for recognition as a ring signal. The default is
.
B
183