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VoIP Telephone Adapters

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Grandstream Networks 8 FXS, 2 GigE, NAT Router
HT818 v2 Powerful 8 port FXS Gateway with Gigabit NAT Router -
Grandstream Networks
HT814 v2 Powerful 4 Port FXS Gateway with Gigabit NAT Router -
Grandstream Networks HT841 VoIP telephone adapter
4 FXO 1 FXS 2 GIGE POE NAT ROUTER -
CyberData Systems SIP Paging Adapter
SIP Paging Adapter, Fast Ethernet, Line In, Line Out, PoE -
Cisco VIC3-4FXS/DID VoIP telephone adapter
4 - Port Voice Interface Card - FXS & DID -
Grandstream Networks HT802 VoIP telephone adapter
2 SIP, 2 FXS, TLS, SRTP, T.38 Fax -
Cisco ATA 191
ATA 191 Multi-platform Analogue Telephone Adapter, 2-Port Handset-to-Ethernet Adapter, 1-Year Limited Hardware Warranty (ATA191-3PW-K9) -
Cisco ATA 192
ATA 192 Multiplatform Analogue Telephone Adapter, 2-Port Handset-to-Ethernet Adapter, 1-Year Limited Hardware Warranty (ATA192-3PW-K9) -
Cisco ATA191-K9 VoIP telephone adapter
ATA191-K9, 2-Port Analog Telephone Adapter -
Cisco ATA190, Refurbished
ATA190-RF Analog Telephone Adapter, 153g, Black, Refurbished