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Amazon.com : Cisco Remanufactured ATA 190 2-Port Analog Telephone Adapter, 90-Day Limited Hardware Warranty (ATA190-RF) : Office Products
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Cisco ATA 190 Analog Telephone Adapter Administration Guide for SIP Version 1.2 - Cisco ATA 190 Analog Telephone Adapter Overview [Cisco ATA 190 Series Analog Telephone Adapters] - Cisco
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