NTT DoCoMo has reduced the service area of its demonstration 3G network in Athens and cut by half the amount of time it will operate.
In July NTT DoCoMo said it would place three base stations in Athens to allow users of its Japanese 3G service to use their handsets in the Olympic city.
The base stations were to operate from 30 July to 30 September, allowing users to make and receive calls and use e-mail.
By leasing a line to Tokyo, the Japanese operator planned to offer the service at the same price as calls made locally in Tokyo. But those plans have now changed.
The service area has been reduced to a single base station covering about 200 meters in and around the pavilion of Cosmote Mobile Communications, its Greek partner.
The service will close on 30 August, the day after the closing ceremony for the Games.
NTT DoCoMo also emphasised that the service is a demonstration and not a commercial service.
Martyn Williams writes for IDG News Service