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  1. From the Create CAS Profile drop down box at the top of the CAS Signaling Profile Table Page, select FXO Profile.

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    1Create CAS Loop Start FXO Profile

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Specifies the signaling type for the Loop Start Type.

The options are as follows:

Basic

This type does not provide disconnect signal. Tone-based disconnect supervision should be used, which could take about 20 seconds.

Forward Disconnect

Disconnects the call based on battery removal received from the line. The duration is normally 800 ms and it can be configured.

Reverse Battery

The call is disconnected based on the tip and ring polarity reversal.


DTMF On Time

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Specifies the duration, in milliseconds, that the tones are on.

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Specifies whether or not a dial tone must be detected before dialing out.

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Minimum Forward Disconnect Duration

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Specifies the time which qualifies as a valid forward disconnect (battery removal). Valid only when Loop Start Type is set to "Forward Disconnect".

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Silence Based Disconnect

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Enables and disables the supervision that disconnects a call following silence for the length of time defined in the Silence Based Disconnect Timer field.

Silence is detected only on the audio stream coming into the FXO interface side of the call.

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Silence Level

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The level below which line noise must remain to qualify for silence. This field is only visible when Silence Based Disconnect supervision is enabled.

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