How Mobile VoIP Works
Mobile VoIP is made possible by SIP technology. With SIP, you can adapt multiple types of devices to work with a VoIP system. As of today, mobile VoIP is cheap and easy to find. Many VoIP services even include a mobile VoIP app so that you can easily use your VoIP service through your mobile device.
To use a mobile VoIP app, you download a softphone onto your mobile device. A softphone is software that works as a telephone. This softphone appears on your screen as a dial pad with a contact list.