PHOENIX, Ariz. (AstriCon 2007) - September 27, 2007 - Digium®, Inc.,
the Asterisk® Company, today announced it has acquired Switchvox, a
leading provider of IP PBX phone systems for small- and medium-sized
businesses (SMBs). The acquisition bolsters Digium's presence in the
SMB market and provides a strong platform on which to advance its
Asterisk-based unified communications solution.

Digium is the creator and driving force behind Asterisk, the world's
most popular and successful open source communications platform with an
estimated 3.5 million servers worldwide providing VoIP calls for
businesses and residential end users. More resellers, telecom
professionals and software developers choose Digium's products than
those of any other open source telephony company because only Digium
delivers the technical superiority, security and flexibility associated
with genuine Asterisk.

Switchvox, with an estimated 65,000 end points in operation, is the
world's largest and most successful supplier of open source-based IP
PBX products for businesses. The combination of Digium and Switchvox
will provide open source-based products and solutions that are
unrivaled in the industry.

"Switchvox has built a successful business by offering simple
solutions that make communication easier while Digium is known the
world over as the creator and primary maintainer of the Asterisk open
source telephony code," said Danny Windham, president and CEO of
Digium. "This acquisition is an ideal pairing of two companies
committed to providing Asterisk-based telephony solutions that are less
expensive, easier to use and more flexible than other telephony
products on the market."

Digium and Switchvox will begin integration immediately and plan to
unveil a new product strategy and roadmap later this year focused on
giving SMBs and enterprises new choices in Asterisk-based unified
communications solutions.

"The entire Switchvox team is excited to become part of the Digium
family as it continues to gain momentum and win market share from
traditional phone system vendors," said Joshua Stephens, CEO of
Switchvox. "We look forward to working together to create unified
communications offerings that redefine the VoIP industry and give SMB
and enterprise customers advanced solutions at price points that are
undeniable."

About Digium

Digium®, Inc., the Asterisk® Company, created, owns and is the
innovative force behind Asterisk, the most widely used open source
telephony software. Since its founding in 1999, Digium has grown to
become the open source alternative to the traditional communication
providers, with offerings that cost as much as 80 percent less than
proprietary voice communication platforms. Digium makes Asterisk
available to the open source community under the GNU General Public
License (GPL) and uses business-class Asterisk to power a broad family
of products for small, medium and large businesses. The company's
product line also includes a wide range of hardware to enable resellers
and customers to design their own voice over IP (VoIP) systems. This
year alone, more than 12 billion minutes of calls will be made using
Asterisk. More information is available at www.digium.com.