Amazon.com : VOIP Gateway,Dual Ports Internet Phone Adapter with RJ11/Telephone Ports and Network Cable for Linksys PAP2T,Support SIP V2 Protocol, Fax and Multi-Voice Compression(US Plug) : Office Products
Single Port Fax Adapter for traditional fax machines – Helix Telecom Store
Cisco SPA112 2-Port Phone Adapter
AudioCodes MediaPack Series MP-202 - VoIP phone adapter - MP202B/2S/SIP - -
Cisco SPA112 2-Port Phone Adapter FAX & VoIP - Included AC ADAPTER | eBay
FTA5101 1 FXS VoIP Analog Telephone Adapter - Flyingvoice
VoIP Adapters | Poly, formerly Plantronics & Polycom
FTA1101 Portable Wireless VoIP Adapter - Flyingvoice
POLYCOM OBi302 2-LINE UNIVERSAL VoIP ADAPTER
Cisco ATA 192 Multiplatform Analog Telephone Adapter - VoIP phone adapter - ATA192-3PW-K9 - -
Fax Adapters | US-Made VoIP FAX Adapter Products
Polycom OBi302 2-Line VoIP Adapter (
Managed ATA VoIP Routers
OBi200 - Google Voice VoIP Adapter | Poly, formerly Plantronics & Polycom
Grandstream HT801 FXS 1-Port Analog Telephone Adapter ATA VoIP | eBay
Cisco Small Business SPA112 2-Port VoIP IP Phone Adapter ATA | eBay
Cisco SPA122 ATA with Router VoIP phone adapter 2 phone (FXS)