Asterisk Gateway | Xorcom - IP PBX (Private Branch Exchange) Developer & Manufacturer, Multi-Tenant PBX, Hotel PBX, Virtual PBX, Call Center PBX / PABX
Micon USB/PSTN T-30 switch - make VOIP, Skype or regular phone calls! | eBay
Amazon.com : Pheonix Audio MT454-PSTN-PA USB Base Unit with Analog Phone ( PSTN) Interface and Power Amplifier : Audio Conferencing Equipment : Office Products
Amazon.com : Pheonix Audio MT454-PSTN-PA USB Base Unit with Analog Phone ( PSTN) Interface and Power Amplifier : Audio Conferencing Equipment : Office Products
Phoenix Audio MT454-PSTNP Octopus USB Base Unit with Analog Telephone Interface MT454-PSTN-PA