Product here you will find phone adapter for VoIP internet calling
Linksys products from phone home or office PBX systems, add as many phone lines as you need.
Linksys PAP2 router $64.95
Phone adapter (ATA) simple to setup that easily connects your standerd telephone to the internet. Supports one VoIP line and all voice codecs.
Linksys SPA9000 $395.00
This IP PBX marriers the rich feature set of high-end PBX telephone system with the convenience and
cost advantages of voice over IP. Supports initially four VoIP lines and is upgradeable to 16 VoIP 16 lines.
D-Link 2320B Modem $39.95