Close on the heels of a service outage that caused a temporary loss of personal data of its SideKick subscribers, T-Mobile USA faced yet another glitch late Tuesday, with a pervasive voice and data service outage affecting its subscribers all over the country!

The problem-laden wireless carrier said that it is working to fix the problem, which it claims started affecting nearly 5 percent of its customers from around 5:30 PM ET onwards.

In a late Tuesday statement to Channelweb.com, the Bellevue, Washington-based T-Mobile said: “We're making good progress restoring voice and messaging service to affected customers. Our rapid response team is working continuously to fully resolve this disruption. We sincerely apologize for the inconvenience that this has caused our customers.”

A division of Deutsche Telekom AG, T-Mobile – a distant fourth ranker among US carriers - has largely been struggling with perceptions of its network as well as subscriber growth; and in an endeavor to look for a turnaround in business, it has recently unveiled a number of new pricing plans.

However, the recent outage and the SideKick episode have somewhat marred T-Mobile’s chances even more. Despite the fact that the carrier was not directly responsible for SideKick users’ loss of data in Microsoft servers, it still continues to struggle to build its image as an unswerving carrier!