1. Nortel Confidential Information IP AUDIO CONFERENCE PHONE 2033 CUSTOMER OVERVIEW April 2005

2. Nortel Confidential Information IP Audio Conference Phone 2033 Introduction >Employees are increasingly distributed 90% of employees work away from the corporate headquarters* What does this mean? Greater emphasis on having the right tools to support collaboration and information exchange >IP Audio Conference Phone 2033 can help! High quality audio Full duplex and Nortel telephony features Reduces operating expenditure costs (OPEX) IP solution means seamless integration into converged network Scalable for one-to-many deployments based on customer needs >Ideal for: Executive and managerial offices Other employees who can benefit from intra-office mobility Conference rooms *Nemertes Research, 2004

3. Nortel Confidential Information IP Audio Conference Phone 2033 Product Overview >Flexible & expandable 360° room coverage Optional extension microphones >Easy-to-distinguish display Backlit 3x24 LCD enhances viewing angles >High quality audio Full duplex handsfree (IEEE 1329 compliant) G.711, G.729a codecs 802.1p/Q, DiffServ and VLAN tagging Comfort noise generation and silence suppression >Easy-to-use and install Keycaps mimic color scheme of other Nortel IP Phones Same telephony features as IP Phone 2001 Automatic IP address assignment with DHCP IP Audio Conference Phone 2033

4. Nortel Confidential Information IP Audio Conference Phone 2033 Product Overview >Future safe investment Supports firmware downloads via TFTP server >Local AC power Power Interface Module (PIM) >Ten fixed keys Line, Release, Hold, Mute, Volume Up/Down, Messages, Services, Scroll Up/Down >Global solution Icon based keycaps for cross market availability >Color: Charcoal Power Interface Module (PIM)

5. Nortel Confidential Information IP Audio Conference Phone 2033

6. Nortel Confidential Information Backup Slides

7. Nortel Confidential Information IP Audio Conference Phone 2033 Ordering Information >Order base unit via NTEX11AA70 or BA70 >Power cords for the power supply are region specific – see next slide PECCPC CodeDescription NTEX11AA70N0005047IP Audio Conf Phone 2033 Pkg – Charcoal (includes PSU, PIM and Cabling NTEX11DA70N0007078IP Audio Conf Phone 2033 – two Extension Microphones & Cables NTEX11CAN0005050IP Audio Conf Phone 2033 PIM, PSU, Cabling (spares pkg) NTEX11BA70N0005048IP Audio Conf Phone 2033 Pkg w/ Ext Mics & Cables – Charcoal (Includes AA70 and DA70 content)

8. Nortel Confidential Information PECCPC DESCRIPTIONFBP MARKETS NON-FBP MARKETS NTTK14ABA0506449 AC Power Cord - NA NEMA 5-15P 125V 13A 10ft. M. East, China, Taiwan, Indonesia, Philippines, Korea, Thailand, Vietnam and Japan US, CN, CALA NTTK15AAA0781922 AC Power Cord - ANZ AS3112 250V 10A 2.5m Australia, New Zealand NTTK16ABA0506456 AC Power Cord - Euro CEE(7)VII 250V 10A 2.5m Other EMEA, KenyaCALA NTTK17ABA0506461 AC Power Cord - Swiss SEV 1011 250V 10A 8ft. Switzerland NTTK18ABA0506464 AC Power Cord - UK/Ireland BS1363 240V 10A 2.5m Hong Kong, Ireland, UK, Singapore, Malaysia, India, Bangladesh, Pakistan, Brunei & Sri Lanka CALA NTTK22ABA0506468 AC Power Cord - Denmark AFSNIT 250V 10A 2.5m Denmark A0814961 AC Power Cord - Argentina IRAM 2073 250V 10A 8ft. CALA IP Audio Conference Phone 2033 Ordering Information – Power Cords

9. Nortel Confidential Information IP Audio Conference Phone 2033 Servers supporting >CS 1000 and Media Gateway 1000B Generally available April 25, 2005 Backward compatible to Release 3.0 software >Advanced Order Support Merchandise order support – available since February 2005 Included in NNEC 6.2.1 ordering tools Shipments commence on April 25, 2005 >CS 2100 – planned for release SE08 >BCM and SRG – plans under formulation