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| Chapter 4 – Configuring Your MultiVOIP | |
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| FXO Supervision Parameter Definitions |
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| Answer Supervision fields |
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| Current Reversal | Y/N | When this option is selected, the FXO interface sends notice to make |
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| connection upon detecting current reversal from the PBX (which occurs |
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| when the called extension goes off hook). |
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| Answer Delay | Y/N | When this option is selected, the FXO interface sends the connection notice |
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| to the calling party only when the Answer Delay Timer expires. The |
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| connection notice is sent regardless of whether or not the called extension |
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| has gone off hook. |
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| Answer Delay | 1 – 65535 | When Answer Delay is enabled, this value determines when the FXO |
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| Timer | (in seconds) | interface sends the connection notice. |
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| Tone Detection | Y/N | When selected, call disconnection is triggered by a tone sequence |
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| Available Tones | dial tone, | List from which tones can be chosen to signal call answer. |
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| ring tone, |
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| busy tone, |
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| unobtainable tone |
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| (fast busy), |
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| survivability tone, |
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| re‐order tone |
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| Answer Tones | any tone from | Currently chosen call‐answer supervision tone. |
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| Available Tones list |
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| Disconnect Supervision fields | There are four possible criteria for disconnection under FXO: current |
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| reversal, current loss, tone detection, and silence detection. Disconnection |
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| can be triggered by more than one of the three criteria. |
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| Current Reversal |
| Y/N | Disconnection to be triggered by reversal of current from the PBX. |
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| Current Loss |
| Y/N | Disconnection to be triggered by loss of current. That is, when Current Loss |
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| is enabled (“Y”), the MultiVOIP hangs up the call at a specified interval after |
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| it detects a loss of current initiated by the attached device. |
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| Current Loss Timer |
| 200 to 2000 | Determines the interval after detection of current loss at which the call is |
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| (in milliseconds) | disconnected. |
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| Silence Detection |
| Y/N | Enables/disables silence‐detection method of supervising call disconnection. |
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| Enable |
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| Silence Detection |
| One‐Way or | Disconnection to be triggered by silence in one direction only or in both |
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| Two‐Way | directions simultaneously |
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| Silence Timer in |
| integer value | Duration of silence required to trigger disconnection. |
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| seconds |
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Table is continued on next page…
MultiVOIP® Voice/Fax over IP Gateways | 51 |
