Severe VOIP Bug Found in iOS 4.2?

Line2, a popular VoIP application for iOS devices, has sent an email to its customers warning them of a bug in iOS 4.2, according to MacRumors. Apparently if the app is running in the background, the bug causes the ringer continuing to ring even after a call is answered.

Attention all Line2 iPhone, iPod Touch, and iPad users:

Please do not upgrade to iOS version 4.2.

If you upgrade to iOS 4.2 and you are running Line2 in the background, the ringer will continue to ring even after an incoming call is answered. This affects Line2 as well as all other VoIP and social calling apps. (Note: If you do not use Line2 your Toktumi service will not be effected.)

Apple Developer Support is aware of this issue and has designated its status as 'severe'. However, as of the most recent iOS beta (GMSeed build), this issue is still not resolved. We apologize for this inconvenience and will update you as soon as we get more information from Apple.

Line2 will continue to work as normal with your current operating system. We strongly encourage you not to install iOS 4.2 until Apple fixes the upgrade issue. We will send out an email update as soon as it is safe to upgrade.

Sincerely,
The Toktumi/Line2 Team

Its unclear if this bug is addressed iOS 4.2.1 which was recently released to developers.

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