Press Release

T-Mobile Leads in VocaLabs Satisfaction Study

MINNEAPOLIS--(BUSINESS WIRE)--Vocal Laboratories Inc. (www.vocalabs.com) today announced the results of its 13th quarterly SectorPulse study on the quality of customer service among the largest wireless phone companies. During the three months ending Dec. 31, 2006, T-Mobile (Deutche Telekom AG) dropped from an "A" to a "B" in overall caller satisfaction but improved significantly from a "C" to "A" in call completion, a measure of the percent of callers able to complete their business with a single phone call. Verizon Wireless (NYSE:VZ) was close behind, also dropping from "A" to "B" in satisfaction, and improving from a "C" to a "B" in call completion.

Cingular (NYSE:T) remained only a few percentage points back, earning "B"s in both categories. Sprint (NYSE:S) improved from "D" scores in both categories to "C"s, but remained in last place.

VocaLabs CEO Peter Leppik comments: "Having tracked these wireless telephone companies for over three years, we see the service quality gap between the carriers continuing to narrow. It is also apparent from past years that the busy holiday season and resulting new service activations create a spike in phone calls to the carriers, partly explaining the drop in caller satisfaction this quarter."

To learn more about VocaLabs services, visit www.vocalabs.com. An Executive Summary and complete SectorPulse Wireless data reports are available by subscription. Contact Rick Rappe' at rrappe@vocalabs.com, 952-941-6580 X 205.

About SectorPulse Wireless

VocaLabs' SectorPulse reports compare the customer service quality for different companies in the same industry, using data and call recordings from the companies' customers.

VocaLabs has recruited over 80,000 individuals to provide feedback on customer service experiences from which we draw the participants for this ongoing study. VocaLabs 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. Service quality and customer loyalty is tracked in a number of areas with letter grades issued only for the two key categories of satisfaction and single call resolution.

About Vocal Laboratories

Vocal Laboratories delivers statistically reliable feedback on the user friendliness of telephone based customer service whether delivered via traditional call centers or self-service technology. Clients are end user enterprises, market researchers, call center consultants, application providers and equipment vendors. VocaLabs' methodology results in highly accurate data on both technical performance and the impact of service quality on caller opinions.

Contacts

Vocal Laboratories, Inc.

Rick Rappe', 952-941-6580 X 205

rrappe@vocalabs.com

www.vocalabs.com