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 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.

The Metering Tones page is applicable only to FXS interfaces.
Charge Code rules can be assigned to routing rules in the Tel-to-IP Routing table (see Configuring Tel-to-IP Routing Rules). When a new call is established, the Tel-to-IP Routing table is searched for the destination IP address. Once a route is located, the Charge Code (configured for that route) is used to associate the route with an entry in the Charge Codes table.
To configure metering tone type:
1. Open the Analog Settings page (Setup menu > Signaling & Media tab > Gateway folder > Analog Gateway > Analog Settings).

2. From the 'Analog Metering Type' drop-down list (MeteringType), select the metering pulse generated toward the Tel side.
3. In the 'Analog TTX Voltage Level' field (AnalogTTXVoltageLevel), configure the metering signal/pulse voltage level.
4. Click Apply, and then restart the device with a save-to-flash for your settings to take effect.