Cisco
Configuration Tasks
To change parameters related to disconnect supervision, use the following commands as appropriate, in
| Command | Purpose |
Step 1 |
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Enables battery reversal. The default is that battery | ||
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| reversal is enabled. |
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| • For FXO |
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| command to configure a |
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| disconnect when it detects a second battery reversal. |
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| The default is to disconnect when a second battery |
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| reversal is detected. |
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| Note Also use the no |
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| a connected FXO port does not support battery |
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| reversal detection. |
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| • For FXS |
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| command to configure the voice port not to reverse |
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| battery when it connects calls. The default is to |
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| reverse battery when a call is connected, then return |
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| to normal when the call is over, providing positive |
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| disconnect. |
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| See also the |
Step 2 |
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(FXO only) Enables the PBX or PSTN switch to provide | ||
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| STD. By default the supervisory disconnect command is |
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| enabled. |
Step 3 |
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(FXS only) Configures the voice port to return an | ||
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| acknowledgment upon receipt of a disconnect signal. The |
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| FXS port removes line power if the equipment on the FXS |
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| The no |
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| from responding to the |
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| removal of line power. |
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Cisco IOS Release 12.2(2)XT and 12.2(8)T
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