The only business of telco operators should be providing connectivity to customers. The certainly don't have to worry about content, but they even don't have to worry about voice. Just data.
"It is of course possible to port Skype to PocketPC or Palm devices and use it with Wifi. Although being very useful, this still limits the usage to Wifi covered areas. Additionally, the number of PDA users is relatively low compared to mobile phone users, and decreasing. What would be really useful is a mobile phone with Skype integrated. Unlimited data plans for a fixed fee have started to appear in the US and some countries in Europe. Current GPRS technologies, with their high latencies, would probably not make VoIP applications possible, but with 3G networks it’s a different story."