Qwest's Jitter Service Level Agreement Enhances iQ Networking Performance

DENVER, April 21, 2004 ? Qwest Communications International Inc. (NYSE:Q) has developed the industry?s most aggressive service level guarantee for a critical network function, known as ?jitter.? Low network jitter is essential for delivering Qwest iQ Networking? because it helps ensure that customers? business applications, such as voice over Internet protocol (VoIP) will have peak performance.

Jitter measures the delay in streaming media and VoIP transmission over a broadband network. If there is significant jitter on the network, there can be gaps in a video or delay in voice calls creating a poor customer experience. Therefore, the less jitter the network has, the better the network performance and the customer?s experience. Qwest guarantees that jitter levels will never exceed two milliseconds?which is quicker than the blink of an eye. The jitter guarantee underscores Qwest?s commitment to giving customers superior network services.

iQ Networking is Qwest?s newest business-class offering, which is a suite of wide area networking (WAN) services that powers customers' business operations on a nationwide, multi-protocol label switching (MPLS) network. iQ Networking is completely application-aware and tuned specifically to the business applications that customers choose to implement. Not only does it provide superior technology and universal access, it offers service and support on the customers? terms ? from a single, accountable one-call-resolve support structure, to convenient Web management and tools. Qwest?s jitter service level agreement will provide even greater network and application performance.

?We?re working hard to enhance our iQ Networking service roll-out,? said Eric Bozich, vice president, Qwest national services. ?It?s essential that we provide the best technology and leading-edge network performance when delivering iQ Networking because our customers are managing their critical business functions on this platform.?

?Before a company can successfully implement IP services like VoIP over a corporate WAN, network managers must ensure performance and quality,? said The Yankee Group?s Bryan Van Dussen. ?Qwest?s jitter service level agreement addresses the fact that customers will not tolerate the lack of availability, poor quality of service or in the case of VoIP, an uncompleted call.?

Qwest is also allowing customers to view the real-time jitter levels on the network by visiting http://stat.qwest.net/; a service not offered by most competitors

The low amount of jitter on the network is applicable to all of Qwest?s IP services, such as private routed networks, dedicated Internet access services and Web hosting. Qwest business customers use these critical products to conduct business in real-time and ensure quality communications between offices, employees and customers.

This release may contain projections and other forward-looking statements that involve risks and uncertainties. These statements may differ materially from actual future events or results. Readers are referred to the documents filed by us with the Securities and Exchange Commission, specifically the most recent reports which identify important risk factors that could cause actual results to differ from those contained in the forward-looking statements, including but not limited to: the duration and extent of the current economic downturn in our 14-state local service area, including its effect on our customers and suppliers; access line losses due to increased competition, including from technology substitution of our access lines with wireless and cable alternatives; our substantial indebtedness, and our inability to complete any efforts to de-lever our balance sheet through asset sales or other transactions; any adverse outcome of the SEC's current investigation into our accounting policies, practices and procedures and certain transactions; any adverse outcome of the current investigation by the U.S. Attorney's office in Denver into certain matters relating to us; adverse results of increased review and scrutiny by Congress, regulatory authorities, media and others (including any internal analyses) of financial reporting issues and practices or otherwise; further delays in making required public filings with the SEC; rapid and significant changes in technology and markets; any adverse developments in commercial disputes or legal proceedings, including any adverse outcome of current or future legal proceedings related to matters that are the subject of governmental investigations, and, to the extent not covered by insurance, if any, our inability to satisfy any resulting obligations from funds available to us, if any; potential fluctuations in quarterly results; volatility of our stock price; intense competition in the markets in which we compete including the likelihood of certain of our competitors emerging from bankruptcy court protection or otherwise reorganizing their capital structure and competing effectively against us; changes in demand for our products and services; acceleration of the deployment of advanced new services, such as broadband data, wireless and video services, which could require substantial expenditure of financial and other resources in excess of contemplated levels; higher than anticipated employee levels, capital expenditures and operating expenses; adverse changes in the regulatory or legislative environment affecting our business; and changes in the outcome of future events from the assumed outcome included in our significant accounting policies.

The information contained in this release is a statement of Qwest's present intention, belief or expectation and is based upon, among other things, the existing regulatory environment, industry conditions, market conditions and prices, the economy in general and Qwest's assumptions. Qwest may change its intention, belief or expectation, at any time and without notice, based upon any changes in such factors, in Qwest's assumptions or otherwise. The cautionary statements contained or referred to in this release should be considered in connection with any subsequent written or oral forward-looking statements that Qwest or persons acting on its behalf may issue. This release may include analysts' estimates and other information prepared by third parties for which Qwest assumes no responsibility.

Qwest undertakes no obligation to review or confirm analysts' expectations or estimates or to release publicly any revisions to any forward-looking statements to reflect events or circumstances after the date hereof or to reflect the occurrence of unanticipated events.

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