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- Which authentication protocol does Nokia Series 40 SIP VoIP support?
- I am getting an error message 'Cannot use folder' when I am trying to access my memory card in the mobile phone. What is wrong?
- Why do VoIP calls not succeed over the 3G connection in my Series 40 devices?
- Does my Nokia Series 40 device support VoIP call recording
- What should I do to prepare my phone for a software update?