1. Defining the Next-Generation Access Network Slideware Versus Reality Robert A. Bivin

2. C O N F I D E N T I A L 2 2002 Top Ten: Words of Wisdom Source: Light Reading “Powerpoint has become a virus” Scott Kriens, CEO Juniper Networks, Inc.

3. C O N F I D E N T I A L 3 Slideware Lower capital cost More features Smaller footprint Lower operating costs Freedom from the incumbent switch suppliers An IP access network solution Ready today Lower capital cost More features Smaller footprint Lower operating costs Freedom from the incumbent switch suppliers An IP access network solution Ready today Softswitching is everything:

4. C O N F I D E N T I A L 4 Industry Confusion Class 5 Class 4/ Tandem MSO Wireless $

5. C O N F I D E N T I A L 5 Reality – One Perception Progress is being made in the industry Product features Sustained voice traffic Financial pressure is taking its toll Service providers are adopting the technology Slowly Cautiously First Class 5 next generation switching will be ATM based Next generation switching will happen Progress is being made in the industry Product features Sustained voice traffic Financial pressure is taking its toll Service providers are adopting the technology Slowly Cautiously First Class 5 next generation switching will be ATM based Next generation switching will happen

6. C O N F I D E N T I A L 6 A Gradual Migration to Packet Call Agent Media Gateway Packet Network Access Gateway Packet Next Generation Class 5 Switch The Future Packet Network DLC PSTN Class 5 Switch TDM Packet Today DSLAM

7. C O N F I D E N T I A L 7 Media Gateway (Switching Matrix) Media Gateway (Switching Matrix) Next Generation Class 5 Switch TDM ATM IP TDM ATM IP Call Agent (Call Control) Call Agent (Call Control) GR-303 H.248/MEGACO MGCP/SIP SS7 SIP-T

8. C O N F I D E N T I A L 8 DSL TDM to Packet TDM to Packet Access Gateway POTS Specials COIN etc. POTS Specials COIN etc. Advanced Signaling Advanced Signaling ESA Switching Fabric Copper Termination Copper Termination Packet Transport Packet Transport H.248/MEGACO

9. C O N F I D E N T I A L 9 Steps in the Network Migration Optimize Network Packetize Network Migrate Switching

10. C O N F I D E N T I A L 10 Access Migration Steps TR-008/Analog T1/L-POTSPOTS DSLOC3c GR-303 DSLOC3c T1 POTS Concentrate subscribers Collapse remote switches H.248/MEGACO OC3c POTS DSL Converge network Replace switches

11. C O N F I D E N T I A L 11 Switch Re-homing Before Legacy Master Class 5 Legacy Slave Class 5 Remote Multiple Costs: Switch Maintenance Software Rtus Upgrade HW/SW Warranty/service Plans Multiple Costs: Switch Maintenance Software Rtus Upgrade HW/SW Warranty/service Plans

12. C O N F I D E N T I A L 12 Switch Re-homing After GR-303 15 T1X GR-303 15 T1X 4 Fibers North LET (Master) East LET South LET OC3 Data Network OC3 NGC5 Switch NGC5 Switch GR-303 15 T1X PSTN West LET

13. C O N F I D E N T I A L 13 Cap – Roll – Replace Moving into the Future OPEX $ Time Cap Roll Replace Shorten

14. C O N F I D E N T I A L 14 Next Generation Switching is Happening Sprint lets $1.1B contract for C2P (Circuit to Packet) Phase One program Collapsing COs Rebuilding Network RUS trials underway for NGC5 switches Taqua Santera Customers are purchasing switches Sprint lets $1.1B contract for C2P (Circuit to Packet) Phase One program Collapsing COs Rebuilding Network RUS trials underway for NGC5 switches Taqua Santera Customers are purchasing switches

15. C O N F I D E N T I A L 15 Summary Next generation switching will arrive Plenty of work to be done in the network before switching arrives Maturing advanced technology will obviate the need for “advanced slideware” Next generation switching will arrive Plenty of work to be done in the network before switching arrives Maturing advanced technology will obviate the need for “advanced slideware”

16. Defining the Next-Generation Access Network