1. DVG-2004S Presentation 4-Port VoIP Station Gateway DVG-2004S Presentation 4-Port VoIP Station Gateway D-Link Corporation March 2005

2. Product FAB FeaturesAdvantagesBenefits 4 analog loop-start FXS interface Providing 4 simultaneous Internet phone connection by plugging in regular phones. Allowing users to connect any phones or fax machines to it to make long- distance calls or send out fax on the Internet. Cost saving and investment protection Providing businesses with inexpensive upgrade to Internet telephony with existing equipments. Allowing users to protect and extend their past investments in telephones, fax machines and control their migration to IP. SIP Protocol Support Serving telephony communication as web application and integrating easily into other Internet services. Inexpensive investment solution to deploy an Internet phone environment for both service provider and client users. PPPoE support for dial-up broadband connection Providing a way to dial-up the Internet DSL/Cable modem. Concerning bandwidth resources, businesses could establish an specific DSL/Cable for Internet telephony usage. Numerous convenient call features support Including call transfer, forward, hold, retrieve, call waiting, caller ID display and anonymous call blocking, 3-way conference. Allowing service provider to offer these to their subscribers and caller can take advantages from these convenient features. Guaranteed voice quality with QoS support Ensuring that voice received through the Internet is the same as that received on the ordinary phone. Delivering clear sounds, voice and reliable fax calling and transmission.

3. Application Diagram Internet ADSL Modem DVG-2004S ITSPPSTN Branch Office Headquarter Long Distance Call International Call

4. Outside Interface Grounding Cable plug 4 FXS RJ-11 Ports LED Indicator of 1~4 FXS ports Factory Reset LED Indicator of Ready Console Port 10/100Mbps LAN port Power Jack

5. Cost saving and investment protection solution for upgrading to Internet telephony with existing telephone and fax equipments. 4 analog FXS interfaces for 4 simultaneous Internet phone connections to achieve customer’s needs. Standardize SIP Protocol support. PPPoE function let businesses establish standalone proprietary bandwidth for VoIP. Delivering guaranteed clear voice and reliable fax quality by QoS and numerous convenient call features to meet customer’s alternative requirements. Top 5 Key Selling Point