1. Siemens Enterprise Communications Introducing OpenStage Open Fixed Mobile Convenience with Style (Short Product Overview)

2. Page 2 Siemens Enterprise Communications Copyright © Siemens Enterprise Communications GmbH 2007. All rights reserved. Introducing OpenStage™ A stylish new generation of communication devices 1) Coming soon Intuitive Easy access to important functions Innovative control elements Large graphical color displays Applications Built-in applications Platform for external applications Personalization Polyphonic ringer tones Skins Pictures / screen saver Key Features Outstanding Speaker phone WLAN via USB 1), Bluetooth onboard Interoperability with external devices Gigabit Ethernet switch Security Design New highly innovative design Appealing colors & material High quality

3. Page 3 Siemens Enterprise Communications Copyright © Siemens Enterprise Communications GmbH 2007. All rights reserved. Up0/e a/b for phone/fax WLAN Via USB adapter Headset USB Extension Acoustic Unit USB Master Connection to HiPath System Via LAN cable Via Up0/e Wired or wireless headsets Memory Stick OpenStage™ Manager SW (synchronization, personalization) Phone & analog adapter Headset Jack Key Module Busy Lamp Field PC Modules Recorder IP TDM 43 2 IP 1 Introducing OpenStage™ Personal Fixed Mobile Convenience

4. Page 4 Siemens Enterprise Communications Copyright © Siemens Enterprise Communications GmbH 2007. All rights reserved. OpenStage™ Meet the family 4 models targeting the needs of everyone in your organisation OpenStage™ 20 The efficient, universal speaker phone OpenStage™ 40 The flexible office phone OpenStage™ 60 Ideal for boss-secretary and interaction with other mobile devices OpenStage™ 80 The executive edition – only the best!

5. Page 5 Siemens Enterprise Communications Copyright © Siemens Enterprise Communications GmbH 2007. All rights reserved. OpenStage™ Product Details Common functionality VoIP Protocol  Standards based SIP (RFC 3261) or CorNet IP Interfaces  Integrated switch (10/100 Base-T)  Optional Gigabit Ethernet for every model (coming soon) Acoustics  Full duplex hands free talking  G.711, G.729, G.722 wideband codec Additional features  802.3af Power over Ethernet  QoS: Diffserv, 802.1 p/Q  Media encryption (coming soon)  802.1x authentication (coming soon)

6. Page 6 Siemens Enterprise Communications Copyright © Siemens Enterprise Communications GmbH 2007. All rights reserved. Product Characteristics OpenStage™ 80 Tiltable graphical color TFT display; 6,4” VGA (640x480 pixel); backlit Mode keys:  Telephony  Phone Book  Call Log / History  Message Waiting  Applications  Help Keypad TouchGuide Optical call alert, blue status LED Illuminated TouchSlider for volume adjustment 9 free programmable touch keys with blue LEDs  Headset jack  Bluetooth 1.2  USB  MP 3 ringer tones Pushbuttons:  Speaker with blue LED  Headset with blue LED  Mute with blue LED Pushbuttons:  Drop / Release  Call Forwarding with blue LED  Voice Dialing with blue LED 8023.af Power class: 3

7. Page 7 Siemens Enterprise Communications Copyright © Siemens Enterprise Communications GmbH 2007. All rights reserved. Each key equipped with a blue LED, Call Log and Product Characteristics OpenStage™ 60 Tiltable graphical color TFT display; 5,7” QVGA (320x240 pixel); backlit Pushbuttons:  Drop / Release  Call Forwarding with blue LED  Voice Dialing with blue LED Mode keys:  Telephony  Phone Book  Call Log / History  Message Waiting  Applications  Help Keypad TouchGuide™ Optical call alert, blue status LED Illuminated TouchSlider™ for volume adjustment 8 free programmable touch keys with blue LEDs  Headset jack  Bluetooth 1.2  USB  High quality ringer tones Pushbuttons:  Speaker with blue LED  Headset with blue LED  Mute with blue LED 8023.af Power class: 3

8. Page 8 Siemens Enterprise Communications Copyright © Siemens Enterprise Communications GmbH 2007. All rights reserved. OpenStage™ 80, 60 Applications Platform (coming soon) The sky is the limit Customer process / workflow Customer (business) application XML Server with XML Server Application WML/HTML Server with Web application Phone Hardware Linux Java J2ME XML midletJava applet Browser XML API OpenStage™ – a powerful platform for multimedia applications  Large color display  Loudspeaker/Microphone  Open standards for 3rd party development  Open APIs for complete phone access Technology Partner Framework  Development partners provide the application the customer needs  We host the community for application development on OpenStage

9. Page 9 Siemens Enterprise Communications Copyright © Siemens Enterprise Communications GmbH 2007. All rights reserved. Product Characteristics OpenStage™ 40 (coming soon) Optical call alert, red status LED Pushbuttons:  Speaker with red LED  +/- keys Tiltable graphical display; 5,1”; 6 lines; 240 x 128 pixel; monochrome; backlit Pushbuttons:  Menu with red LED  Message waiting with red LED Keypad Pushbuttons:  Mute with red LED  Headset with red LED 5-way navigator with pushbuttons 6 free programmable touch keys with red LEDs Headset jack Wall mountable Pushbuttons:  Drop / Release  Redial  Call Forwarding with red LED 8023.af Power class: 2 Customisable for various office environments, e.g. for desk sharers, people working in teams or call center staff.

10. Page 10 Siemens Enterprise Communications Copyright © Siemens Enterprise Communications GmbH 2007. All rights reserved. Product Characteristics OpenStage™ 20 (coming soon) Tiltable graphical display; 2 lines; 205 x 41 pixel; monochrome Pushbuttons:  Drop / Release  Redial  Call Forwarding with red LED  Mute with red LED Pushbuttons:  Speaker with red LED  +/- keys Keypad 3-way navigator with pushbuttons Pushbuttons:  Menu with red LED  Message waiting with red LED Wall mountable 8023.af Power class: 1 Full-featured speakerphone with intuitive and interactive user interface. Universal solution for efficient and professional telephony.

11. Page 11 Siemens Enterprise Communications Copyright © Siemens Enterprise Communications GmbH 2007. All rights reserved. OpenStage™ Setting the benchmark for Open Communications The first serious initiative to update the user interface on a phone since the change from rotary dialing to keypad in the 1970’s.  TouchGuide  Touch and context sensitive keys The first time that a desktop phone has been able to share information with a mobile phone using bluetooth.  Object Push Profile  Carkit and Headset Profile The first time an enterprise desktop phone has been able to connect to both wired and wireless infrastructures.  Via wireless USB Adapter The first time a desktop phone has supported Open Communications.  SIP VoIP, HTML, WML and XML all at the same time (coming soon).

12. Page 12 Siemens Enterprise Communications Copyright © Siemens Enterprise Communications GmbH 2007. All rights reserved. Timeline* 12/06 OpenStage 60, 80 (SIP) HiPath 8000 v2.2 SIP OpenStage 20, 40 (SIP) HiPath 8000 v2.2 SIP (31.05.07) OpenStage Key Module, Power supply 03/0705/07 OpenStage 60, 80 (CorNet IP) OpenStage 20, 40 (CorNet IP) 07/07 Busy Lamp Field OpenStage 40 E12/2006 M3 E03/2007 PSF E08/2007 M3 E05/2007 M3 E08/2007 M3 E05/2007 M3 E03/07 Addl functions E05/2007 M3 08/0 7 E05/2007 FP- HiPath 8000 3.0 * All functionality and timing referred to in this presentation is for guidance only and cannot be used to make any contractual or other commitment on behalf of Siemens. All functionality and timing referred to in this presentation is subject to change without prior notice

13. Page 13 Siemens Enterprise Communications Copyright © Siemens Enterprise Communications GmbH 2007. All rights reserved. OpenStage™ Product Details Deployment / Administration  Easy administration with Deployment Server (DLS)  Plug & Play for first installation  Automatic software updates Manually  Administration via phone integrated menu  Use Web Based Management from every PC (deployment and administration) Server Based  Use DLS for large scale installations  Automatic SW Update  Bulk Changes File Based  Open XML Standard  Ready for integration in 3rd party deployment fabric Pick and choose your personal deployment option:

14. Page 14 Siemens Enterprise Communications Copyright © Siemens Enterprise Communications GmbH 2007. All rights reserved. OpenStage™ Product Details Competition – OpenStage Differentiators Criteria  Worse than average  Average Better than average OpenStage differentiates via Design / Value Most appealing mixture of colors & material Highly innovative design High value Usability Best in class display (size, resolution, quality) Intuitive User Interface Innovations / control elements, like TouchGuide & Slider Acoustics Best acoustics (design of handset, speaker housing and codec technology) Applications Broadest application platform (WML, HTML, XML, JAVA) Connectivity Broadest options for customization, like Key Module, Busy Lamp Field, wired and wireless headsets, etc. Interworking with other devices via USB and Bluetooth Personalization Pictures (assigned to contacts) Screen saver (slide show) Skins / Themes OpenStage Avaya 46xxCisco 79xxAlcatel xxx9