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Amazon.com : Grandstream HT801 Single-Port Analog Telephone Adapter : Office Products
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Amazon.com : Flying Voice FTA5111 1 FXS & FXO Port ATA Analog Telephone VoIP Adapter Support for Home and SOHO Phone Service : Office Products
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Amazon.com: cnPilot Home & Business R200P 802.11n 300 Mbps Wi-Fi WLAN Router with Analog Telephone Adapter (ATA) VoIP Gateway, 4 port Network Switch, PoE for PMP450, ePMP SMs and 2 phone ports,
