 To configure the keypad features
1. Open the Keypad Features page (Configuration tab > VoIP menu > GW and IP to IP
> Analog Gateway > Keypad Features).
Figure 25-1: Keypad Features Page
2. Configure the keypad features as required.
3. Click Submit to apply your changes.
25.2 Configuring Metering Tones
The FXS interfaces can generate 12/16 KHz metering pulses toward the Tel side (e.g., for
connection to a pay phone or private meter). Tariff pulse rate is determined according to
the device's Charge Codes table. This capability enables users to define different tariffs
according to the source/destination numbers and the time-of-day. The tariff rate includes
the time interval between the generated pulses and the number of pulses generated on
answer.