| Battery | This mechanism will reverse | OFF |
| Reverse | the polarity promptly that help |
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| some PBX to identify the start |
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| and end of each call |
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| ON: Enable the function |
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| OFF: Disable the function |
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| Auto Answer | This unit auto answer the call | Disable |
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| from FXO |
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| Disable: Disable Auto Answer |
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| Enable: Enable Auto Answer |
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| Enable w/ Pincode: Enable |
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| Auto Answer and Pincode |
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| verification. |
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| Call Waiting | Call waiting function for | Disable |
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| answering two incoming SIP |
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| VoIP phone calls |
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| Enable: Enable call waiting |
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| Disable: Disable call waiting |
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|
T.38 FAX Relay | Control | Yes: Use T.38 as FXS protocol | No |
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| No: Don't use T.38 as FAX |
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| protocol. If user send or receive |
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| FAX by this port, gateway can |
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| use G.711 (PCMU, PCMA) to |
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| |
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| to 11.4 FAX |
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Voice | Input Gain | Adjust Voice input Gain | 0 |
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| Output Gain | Adjust Voice output Gain | 0 |
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