Devices such as MP3s or mobile phones with video capabilities are becoming increasingly popular. As we continue the shift towards IP-based networks we can expect even more advanced technologies to become commonplace. Voice over IP use is on the rise, with applications such as Skype fast gaining ground, while services such as IPTV now add a whole new dimension to watching television. Multiple Play models, which combine voice, video and the internet over the same network are all being launched in a number of countries worldwide.