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TELEPHONE RINGER AMPLIFIER
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TELEPHONE RINGER AMPLIFIER Model No.: GT-EB003 FEATURES: 1. Electronic dual tone ringer 2. With HI/LOW/OFF control by slide switch 3. Extra louder to increase ringer sound 4. No extra power requirem
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TELEPHONE RINGER AMPLIFIER
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TELEPHONE RINGER AMPLIFIER Model No.: GT-EB003 FEATURES: 1. Electronic dual tone ringer 2. With HI/LOW/OFF control by slide switch 3. Extra louder to increase ringer sound 4. No extra power requirem
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TELEPHONE RINGER AMPLIFIER WITH FLASH LAMP
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TELEPHONE RINGER AMPLIFIER WITH FLASH LAMP Model No.: GT-EB003F FEATURES: 1. Electronic dual tone ringer with flash lamp indication 2. With HI/LOW/OFF control by slide switch 3. Extra louder to incr
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TELEPHONE RINGER AMPLIFIER WITH FLASH LAMP
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TELEPHONE RINGER AMPLIFIER WITH FLASH LAMP Model No.: GT-EB003F FEATURES: 1. Electronic dual tone ringer with flash lamp indication 2. With HI/LOW/OFF control by slide switch 3. Extra louder to incr
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TELEPHONE RINGER AMPLIFIER WITH FLASH LAMP
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TELEPHONE RINGER AMPLIFIER WITH FLASH LAMP Model No.: GT-EB003F FEATURES: 1. Electronic dual tone ringer with flash lamp indication 2. With HI/LOW/OFF control by slide switch 3. Extra louder to incr
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TOLL RESTRICTOR
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TOLL RESTRICTOR V MECHANICAL TYPE Saving Phone Bill From Long Distance Call ! FEATURES: 1. Tone / Pulse auto complex 2. 3-sections of key lock 3. Control domestic long distance call (such as 0/9)
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TOLL RESTRICTOR
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TOLL RESTRICTOR V MECHANICAL TYPE Saving Phone Bill From Long Distance Call ! FEATURES: 1. Tone / Pulse auto complex 2. 3-sections of key lock 3. Control domestic long distance call (such as 0/9)
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TOLL RESTRICTOR
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TOLL RESTRICTOR V MECHANICAL TYPE Saving Phone Bill From Long Distance Call ! FEATURES: 1. Tone / Pulse auto complex 2. 3-sections of key lock 3. Control domestic long distance call (such as 0/9)
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USB Modem Phone with Caller-ID
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Transmission protocols supported ()USB hot plug & play interface ()Video ready modem ()Enhanced voice mode feature () () () () ()
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