Toktumi, the firm behind the popular Line2 VoIP application for iOS devices has sent an email to its customers to inform them about a bug in iOS 4.2, which results in the ringer continuing to ring even after a call is answered when Line2 is running in the background.

Toktumi is advising customers to avoid upgrading to iOS 4.2.

According to Toktumi, Apple’s engineers are aware of the issue, which reportedly affects all VoIP applications, and have classified it as “severe” :

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

We’ve heard rumors that the release of iOS 4.2, which was earlier expected last week based on the release of iOS 4.2 GM might be delayed to November 24th. It is not clear if Apple has delayed the release of iOS 4.2 also  because of this bug. Apple had released an updated version of iOS 4.2 GM for iPad to developers of iOS Developer program to fix the Wi-Fi connectivity bug that was affecting iPad users.

iOS 4.2 will bring a number of new features like AirPlay and AirPrint to iOS devices. Besides this, its a major update for the iPad as it finally brings iOS 4 features like Game Centre, multitasking and folder management to the iPad that were only available on the iPhone and iPod Touch until now.

As usual, stay tuned for more news and info on the topic by following us on Twitter and/or subscribing to our RSS feed.

Authors: _GadgetNews

to know more click here