You can use this Skype from iPhone only when you have access to Wi-Fi. Otherwise if you are in a cellular coverage area and don’t have access to Wi-Fi, then you can just chat with your Skype contacts as calls are not supported under these limitations. Skype doesn’t support making calls over 3G network. Using Skype, we cannot initiate conference calls rather we can be part of the conference calls initiated by someone else. If you want to receive any incoming calls in Skype through your iPhone, you need to sign-in to Skype and cannot indulge in any other activities like message or browse. Always the application needs to be active. This is considered to be the most disadvantageous situation as its blocking us from doing other activities. Skype in iPhone doesn’t support video call as how it’s supported over web.