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VoIP subscriber gateways 61
– FXS profile – selecting user profile for subscriber line parameters. You can configure group of
parameters in the ‘FXS profiles’ tab. The selector value ‘No profile’ includes individual FXS port
settings;
– Minimal on-hook time – min clearback detection time, in milliseconds. At that, this parameter
represents the max flash detection time;
– Min flash time – min time of flash detection, in ms;
– Gain receive (x0.1dB) – received signal gain (transmitted into the phone handset), measurement
unit—0.1dB;
– Gain transmit (x0.1dB) – transmitted signal gain (received by the phone handset microphone),
measurement unit—0.1dB;
– Min pulse – configuration is required for pulse dialling mode;
– Interdigit – configuration is required for pulse dialling mode;
– Caller-ID generation – select mode for Caller ID generation. Subscriber phone should support
competent method for Caller ID operation:
Off – Caller ID is disabled;
DTMF – DTMF Caller ID method. The number is served between the first and second calls
on the line by dual-frequency DTMF;
FSK BELL 202, FSK V.23 – FSK Caller ID method (using BELL 202 standard, or ITU-T V.23).
The number is served between the first and second calls on the line by a data stream with
a frequency modulation;
– Hangup timeout, sec – dialing timeout for the first digit of a number. When there is no dialing
during the specified time, 'busy' tone will be sent to the subscriber, and the dialing will end;
– Ringback timeout, sec – 'busy' tone timeout for the subscriber. If the subscriber doesn't put the
phone onhook until the timeout expires, an error tone will be sent into the line;
– Busy timeout, sec – launches when an incoming call is received and defines the maximum call
response time. When the defined timeout expires, 'busy' tone will be sent to the remote
subscriber;
– Payphone – port operates in payphone mode:
Off – normal mode, paypnone is disabled;
Polarity reversal – payphone operation mode with polarity reversal. Perform line power
polarity reversal on subscriber's response, and return it to original state on;
12 kHz – when there is an outgoing call, tariff pulse with 12 kHz frequency will be sent in
the line one time per second;
16 kHz – when there is an outgoing call, tariff pulse with 16 kHz frequency will be sent in
the line one time per second;
Automatic gain at the reception (Rx AGC) – when checked, received signal will be amplified up to
specified level (max gain is +/- 15 dB), otherwise gain is not enabled;
Retrain margin of signal reception (Rx AGC level) – identify retrain margin for received
analogue signal gain (available values are -25, -22, -19, -16, -13, -10, -7, -4, -1 dB).
Automatic gain at the transmission (Tx AGC) – when flag is set, transmitted signal will be amplified
up to specified level (max gain is +/-15dB), otherwise gain is not applied;
Retrain margin of signal transmission (Tx AGC level) – identify retrain margin to amplify
analogue signal of transmission (available values are -25, -22, -19, -16, -13, -10, -7, -4, -1
dB).
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