Zoom Voice Over Ip Adapter (item #5801-00-11)with G.711 and Ilbc and G.729 Codecs

SIP FXS FXO G.729/G.711/ILBC Zoom Telephonics Voice over IP Teleph. AdapterThe Model 5801 Voice over IP Telephone Adapter allows standard analog telephones to make and receive voice calls overthe Internet using a broadband connection. Simplyplug conventional wired or cordless phones into the Model 5801 and then plug the Model 5801 into a broadband-connected router or Internet gateway. More »