1. Meet The HD Handset Vendors (B-05) David Schenkel Senior Technical Analyst ADTRAN IP-based communications solutions – yes, including UC – are here today, and every phone vendor is now supporting high definition (HD) voice at the same price as traditional VoIP phones were only a year ago. This session brings together the industry leaders in HD voice handsets in a presentation and roundtable discussion on the issues facing integrators today when they select handsets. Whose handsets will reign supreme? Each participating vendor will be contributing one (1) HD voice handset towards a random drawing to be held at the end of the session. Every attendee at the session will be eligible to win one (1) handset. A business card is required for entry.

2. Who is ADTRAN? Leading provider of UC, networking and communications equipment – ADTRAN solutions enable UC, voice, data, video, and Internet communications – Widely deployed by carriers, SMBs and enterprises worldwide – Nearly every T1 in the nation delivered via ADTRAN equipment – Market leadership position in IP Business Gateways and #2 in Branch Office Access Routers Over 25 years of experience building innovative solutions supporting next generation technologies Fast Facts: Founded in 1985 Publicly traded on NASDAQ: ADTN 2009 revenue - $484 million 1,700 employees worldwide 50 countries Broad portfolio – 1,700 products Fast Facts: Founded in 1985 Publicly traded on NASDAQ: ADTN 2009 revenue - $484 million 1,700 employees worldwide 50 countries Broad portfolio – 1,700 products ADTRAN Headquarters, Huntsville, AL

3. ADTRAN VoIP/UC Solutions Portfolio IPT Platform – NetVanta 7100 IP PBX – NetVanta 7060 IP Business Gateways Switches, Routers NetVanta UC Voice Data

4. ADTRAN HD Voice End Point Support Commitment to Maintain Multi-Vendor Interoperability for SIP HD Voice NetVanta UC NetVanta ECS (75 to 2000 Users) Total Solutions Alliance NetVanta 7000 Series IPT (5 to 100 Users) ADTRAN IPT Alliances

5. ADTRAN IP 700 Series Phones

6. IP 700 Series – Key Features Two Models −IP 706 : 6 Buttons −IP 712 : 12 Buttons Works With −NetVanta 7000 Series IPT −NetVanta ECS −SIP Compliant Switches Business Class Attractive Design SIP-Based High Quality Full Duplex Speaker Phone Full Featured, Easy and Intuitive Large Backlit Display Dual 10/100 Switched Ethernet Ports 802.3af PoE Compliant Electronic Hook Switch Detection On target to ship with G.722 by end of 2010

7. ADTRAN/Polycom Series of IP Phones ADTRAN and Polycom Partnership – Polycom VIP/ADTRAN Total Solutions Alliance Guarantee Interoperability All SoundPoint/SoundStation Products, VVX 1500 Work With – NetVanta 7000 Series IPT – NetVanta ECS Support for HD Voice ADTRAN Currently Supplies: – SoundPoint 321, 331, 450, 550, 560, 650, 670 – SoundStation 5000, 6000

8. ADTRAN Total Solution Alliance HD Certified for NetVanta UC ADTRAN: Series 700 IP Phones Polycom: All SoundStation and SoundPoint, VVX1500 AASTRA: All 6700 Series Grandstream: All GXP Business Class Series Snom: All 300 Series, 800 Series and MeetingPoint NetVanta UC

9. Thank you! David Schenkel Senior Technical Analyst ADTRAN Enterprise Networks Division tel: +1 (256) 963-3614 e: david.schenkel@adtran.com w: www.adtran.comwww.adtran.com