CallWave Announces First Carrier Deployment of Visual Voicemail.

Hawaiian Telcom is the Industry's First Carrier to Offer Visual Voicemail to Every Wireless Subscriber in Hawaii

SANTA BARBARA, Calif. & HONOLULU -- CallWave, Inc. (NASDAQ:CALL), an innovator of applications that make phones and PCs work better together, today announced that Hawaiian Telcom is the first carrier to deploy the company's private-labeled visual voicemail solutions.

Hawaiian Telcom, the largest telecommunications provider in the State of Hawaii, is the industry's first carrier to empower all of their wireless subscribers with the ability to access and manage mobile phone voicemail from the convenience of their computer. In so doing, Hawaiian Telcom is creating a rich online branding experience and gaining daily access to customers via email and desktop applications.

The enhanced voicemail solution will be marketed under the Hawaiian Telcom Call Choice(SM) brand. The Call Choice voicemail service is free to all Hawaiian Telcom wireless customers. With its strategic focus to provide innovation throughout their market, Hawaiian Telcom Call Choice visual voicemail has also been made available to non-Hawaiian Telcom subscribers for a limited time without requiring them to change their handset, switch phone numbers, or change service providers. One of the innovative features of Call Choice voicemail is users receive a copy of their mobile phone voicemail as an email so they can see, prioritize, listen and respond via a text message from their computer. A Call Choice voicemail user can even immediately place a return call directly from these email messages.

"Visual voicemail is helping Hawaiian Telcom think outside the phone to generate customer excitement, allegiance, and numerous new branding opportunities," said David Hofstatter, Chief Executive Officer for CallWave. "By pioneering the deployment of visual voicemail software, Hawaiian Telcom is broadly distributing an exciting new service that no other carrier offers, while extending their brand from the phone to the PC, and establishing a new medium for customer interaction and revenue generation."

"Our goal is to provide more useful options for voicemail and call management through our exclusive Call Choice family of services," said Jon Gelman, Hawaiian Telcom Vice President - Wireless Operations & Development. "We're starting with offering Call Choice visual voicemail service to all wireless consumers in Hawaii, which strengthens our brand and expands our customer base. By integrating CallWave's simple-to-use and easy-to-adopt applications, our customers can now experience richer communications and manage calls in ways never before thought possible."

CallWave's services are carrier-grade, fast-to-market solutions that bring the end-user's phone calls to their PCs, creating desktop value in every call. A CallWave partnership allows carriers to rapidly transform voicemail into a voice portal, encouraging desktop interaction with the carrier brand, helping to reduce churn, increase revenue, and create a new marketing channel to promote products and services. CallWave has engineered its cost-effective solutions to support current generation landline, mobile and IP networks and be applicable for both pre- and post-IMS deployment.

Pricing and Availability

Hawaiian Telcom is breaking new ground in communication convenience with Call Choice - an advanced voice management solution. Call Choice is free to both Hawaiian Telcom wireless customers and to most wireless subscribers in Hawaii regardless of handset or service provider. The free trial period for all wireless subscribers runs through April 30, 2007. A free basic service will remain bundled with Hawaiian Telcom wireless service. For additional information or to sign up, please visit a Hawaiian Telcom retail location or www.callchoice.com.

About Hawaiian Telcom

Hawaiian Telcom is the state's leading telecommunications provider, offering a wide spectrum of telecommunications products and services, which include local and long distance service, high-speed Internet, wireless services, and print directory and Internet directory services. For more information, please visit www.hawaiiantel.com.

About CallWave, Inc.

CallWave is leading the way in developing applications that make phones and PCs work better together. With CallWave, tasks that are difficult to do on the phone become much easier on the desktop - without changing phone numbers, handsets or service providers. CallWave enables consumers and businesses to get more out of the devices they use every day - their PCs and phones. CallWave also provides private-label convergence applications, such as PC-based visual voicemail, to service providers to reduce churn, expand on-line marketing and drive revenues. Founded in 1998, CallWave is headquartered in Santa Barbara, California. For further information, please visit www.callwave.com.

This press release may contain certain statements of a forward-looking nature. Such statements are made pursuant to the "forward-looking statements" and "safe harbor" provisions within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. The statements contained herein which are not historical facts are considered forward-looking statements under federal securities laws. Such forward-looking statements are based on the beliefs of our management as well as assumptions made by and information currently available to them. The Company has no obligation to update such forward-looking statements. Actual results may vary significantly from these forward-looking statements.