bill - 11:56 pm on Nov 9, 2012 (gmt 0)
NTT DoCoMo has been trying to do the same thing in Japan.
Phone call translator app to be offered by NTT Docomo [bbc.co.uk]
NTT Docomo - the country's biggest mobile network - will initially convert Japanese to English, Mandarin and Korean, with other languages to follow.
It is the latest in a series of telephone conversation translators to launch in recent months.
The products have the potential to let companies avoid having to use specially trained multilingual staff, helping them cut costs. They could also aid tourism.
However, the software involved cannot offer perfect translations, limiting its use in some situations.