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011233 SIP Paging Adapter – CyberData Corporation
Mitel SIP OMM DECToverSIP Power adapter for RFP 35/43 - Voip and Go
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Amazon.com: 2-Port VoIP SIP Phone Adapter - GT202 Wireless Router, Supports WiFi Asterisk ATA VOS FXS Fax. Suitable for Home or Business (Black) : Office Products
Universal SIP Paging Adapter with Bell Scheduler – VOXPRIME