| AC Termination Imped- |
| Selects the impedance of the analog line connected to the FXO port on GXV3005 |
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| Here is some basic information which may be helpful for initial configuration: |
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| 600 Ohm – North America; |
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| 270 Ohm + (750 Ohm 150 nF) |
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| 220 Ohm + (820 Ohm 120 nF) – Australia, New Zealand |
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| 220 Ohm + (820 Ohm 115 nF) – Austria, Bulgaria, Germany, Slovakia, South Africa |
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| 370 Ohm + (620 Ohm 310 nF) – UK., India |
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| Silence Timeout |
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| Terminate call after long silence detected. Default is 60 seconds, max 65536. |
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| Caller ID Scheme |
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| The GXV3005 supports 5 different types of schemes: |
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| 1. Bellcore (US standard) |
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| 2. ETSI_RING |
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| 3. ETSI_TAS |
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| 4. DTMF |
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| 5. NTT (Japanese standard) |
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| Please check with your PSTN service provider (or traditional PBX specs) for which caller |
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| ID scheme it supports. |
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| Call Progress Tones |
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| Using these settings, user can configure tone frequencies according to user preference. By |
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| default, the tones are set to North American frequencies. |
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| Frequencies should be configured with known values to avoid uncomfortable high pitch |
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| sounds. ON is the period of ringing (ON time in ms) while OFF is the period of silence. In |
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| order to set a continuous ring, OFF should be zero. Otherwise it will ring ON ms and a |
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| pause of OFF ms and then repeat the pattern. |
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| “Dial tone” |
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| “Ringback tone” |
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| “Busy” |
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| Please refer the document below to determine your local call progress tones: |
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| Tx to PSTN Audio |
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| Allows user to set a value in dB for transmission to PSTN Audio Gain. Default is 1. |
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| Gain(dB) |
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| Rx to PSTN Audio |
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| Allows user to set a value in dB for receive from PSTN Audio Gain. Default is 0. |
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| Gain(dB) |
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FXS SETTINGS
The FXS tab would only appear for GXV3006.
TABLE 15: FXS CONFIGURATION PAGE DEFINITIONS
| Onhook Threshold |
| The amount of time the hookflash is pressed that will cause the device to onhook. |
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| Default is 800ms. |
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| Onhook Voltage |
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| The onhook voltage can be selected according to the line voltage depending on the analog |
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| phone used. The low power/high power will increase/decrease the output current. The de- |
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| fault selection is 48V. |
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Grandstream Networks, Inc. | GXV300x User Manual | Page 37 of 54 |
| Firmware 1.2.3.7 | Updated: 12/2010 |
