Press Release

T-Mobile Earns All "A's" in VocaLabs Customer Service Study

MINNEAPOLIS--(BUSINESS WIRE)--Vocal Laboratories Inc. (www.vocalabs.com) today announced the results of its 14th quarterly SectorPulse study on the quality of customer service among the largest wireless phone companies. During the three months ending March 31, 2007, T-Mobile (Deutche Telekom AG) earned "A's" for both overall Caller Satisfaction and Call Completion, a measure of how many callers were able to complete their business in a single call.

Cingular (NYSE:T) and Verizon Wireless (NYSE:VZ) were tied for second place, earning "A's" for Caller Satisfaction, and "B's" for Call Completion. Sprint (NYSE:S) remained in last place with a "C" for Caller Satisfaction and a "D" for Call Completion.

VocaLabs CEO Peter Leppik comments: "Having tracked these wireless telephone companies for over three years, we've seen a gradual trend towards better overall customer service. The average satisfaction score for the industry today is well above where it was at the beginning of 2004."

To learn more about VocaLabs services, visit www.vocalabs.com. An Executive Summary and complete SectorPulse Wireless data reports are available by subscription. Contact VocaLabs at sales@vocalabs.com, 952-941-6580.

About SectorPulse

VocaLabs' SectorPulse reports compare the customer service quality for different companies in the same industry, using survey data and call statistics from the companies' customers. VocaLabs consumer panelists who are customers of one of the companies included in this report are asked to participate by completing surveys before and after a call to their service provider.

About Vocal Laboratories

Vocal Laboratories is a survey and professional services company specializing in collecting customer feedback about customer service quality. VocaLabs has won numerous industry awards for its innovative survey techniques for delivering timely, accurate, and actionable data in the call center.

Contacts

Vocal Laboratories, Inc.
Peter Leppik, 952-941-6580 X 201

pleppik@vocalabs.com

www.vocalabs.com