The "vast majority" of O2 customers who lost internet connections on their mobile phones have had their service restored, a company spokesman said.

O2公司发言人称，“绝大多数”与网络失去联系的顾客已经恢复了他们的服务。

The data network gets huge traffic due to iPhone usage

The network outage（停机，断电） left hundreds of thousands of UK monthly contract users without access to the web or multimedia¹ messaging from Tuesday afternoon.

O2 says it will continue to restore all services while it investigates the cause of the problem.

The company holds an exclusive（唯一的，排外的） contract for Apple's iPhone.

Blackberry unaffected

More than two million of O2's 20.8 million customers use its data services, an O2 spokesperson told the BBC.

But the total number affected² by the outage was less than that because those with Blackberry handsets and on pre-pay tariffs³（关税） were not affected, she added.

There were no problems with voice or text services.

O2 will also be the exclusive outlet⁴ for（出口，途径） the Palm Pre, widely touted⁵（招徕顾客） as the next credible⁶ threat to iPhone's stranglehold（抑制） on the smartphone market, which will create an additional large load of data network traffic .