Squid blocks Skype for Symbian 60
I have a squid server running smoothly on my home network, server and 4 notebooks (all Ubuntu Karmic fully updated) are running Skype without problems, all WiFi connected. I have now added a Nokia 5530 (Symbian 60, Skype Mobile, WiFi connection) to the network.
Problem is with the phone connection: connection to Skype Server doesn't go through and user is never logged in.
Web browsing from mobile (http and https) works perfectly through Squid. Skype Mobile works perfectly if Squid is bypassed.
Any help is appreciated.