NTT DoCoMo announced that a software glitch has been discovered in some T2101V mobile phones. Sales of the model have been suspended today until the problem is fixed.

When the screen is in the energy-saving mode, the phone sometimes does not receive incoming phone calls, including videophone, or e-mail. Users can avoid this by disabling energy-saving mode.

The energy-saving feature extends battery time by switching to a screen that has fewer graphics after the phone remains unused for a specified number of minutes. The T2101V is capable of slightly more than 30 hours of continuous stand-by in the normal mode.

Since introducing the T2101V on September 27 2002, DoCoMo has sold about 1,640 units.

DoCoMo today issued an advisory via both its website and portal site. The company is urgently producing replacement phones and will notify users immediately via direct mail when these new phones are ready for replacement free of charge.