Grandstream Networks HandyTone 503 FXS FXO VoIP Adapter

The Grandstream HandyTone 503 FXS FXO VoIP Adapter offers the next generation of powerful, affordable, high quality and manageable IP telephony ATA/IAD. The integration of a FXO and FXS port enables remote call origination and termination to and from the PSTN line, known as "hop-on and hop-off" calling. This functionality coupled with its compact size makes it an ideal solution for road warriors seeking the savings and benefits of voice-over-ip communication.