Mouthmun uses VoIP (Voice over Internet Protocal) technology to convert "voice" to digital signals and transmitting them through the Internet (IP). An alternative, more economical option for voice communication, it offers lower cost than normal telephone calls while providing similar sound quality.

MouthFree

Users can make calls from their computers over the Internet to another computer at no charge. Both dialing and recipient computers must Download and Install the Softphone program. You must register to get a Mouthmun ID to make calls.

MouthFone

Users can make calls from their computers over the Internet to any fixed-line or mobile phone number anywhere in the world at low rates. The dialing computer must Download and Install the Softphone program and a Mouthmun ID with remaining balance to make calls.