Invited speech on SoftSwitch 2001 on providing VoIP over cable networks.

1. SOME THOUGHTS…
Xiaolin Lu
Softswitch 2001

2. What is this?
A presentation on Softswitch 2001
 Introduction of the VoIP over cable
evolution – from semi to full +
thoughts on issues beyond technology

3. THOUGHTS
 Reality
 Evolving

4. Drivers
 Cost Reduction
 External:Capacity cost
(regulation and tariffs)
 Internal: common platform
 Value Liberating
 Open platform
 Create stickiness

5. MOTIVATIONS
Voice
Cable DOCSIS CMTS SLA Others’
2nd line
GW
LEC 5E SLA Others’
Voice
IXC Others’ GW Backbone
 Internal cost saving
 Commodatize others
 Create stickiness
 Control the demarcation points

6. DEMARCATION POINTS
A&R
Classifying
Internal  Routing
A&R A&R
Networks  Operation
Voice
 Services
Data HG POP
Video Transition
External
 Connectivity
Networks
Presentation  Conversion

7. CONSTRAINTS
Compatibility

8. Case Study: Convergence Over Cable
Services CPE HE Metro Backoffice Interconnect
Voice NIU HDT SONET Proprietary Circuit
IP
Data CM CMTS IP Standard
volume
Video STB Proprietary Proprietary Proprietary N/A
 Common platform
 SLA
Convergence  Protect investment
 Volume
 Control

9. Case Study: VoIP over Cable
HDT SONET 5ESS PSTN
NIU
HFC CMTS Local IP
CM Router Internet
 Cost saving in access  Intelligent IP metro networks
 Classify -- Policy
 Accommodate legacy
 Coexist NIU/HDT, CM/CMTS
 Existing 5E

10. AN INTERIM SOLUTION
PSTN
5ESS
SONET PH
IPDT HFC
Router
Local IP CMTS
Network
Internet
BTI
 Integrated voice and data over HFC network
 Utilize 5ESS platform for voice interconnect & features

11. MULTI-
MULTI-SERVICE PLATFORM
NIU ISP1
HDT RGW ASP2
CM HFC CMTS
MTA
CMS
Managed MG
PSTN
IP Network SG
Intelligent Edge Pipeline GW & Backoffice
Classify – Policy Policy-based
Policy- Common platform
QoS bridging routing Not just emulation
 Open platform for value creation

12. PacketCable 1.0 – Interoperability
Gateway
PSTN
Specifications V
MSO A
Released 12/7/99 CMS
Zone
Compliance
Gateway
Testing Begun PSTN
Gateway V
PSTN MSO C
Zone
V
CMS
MSO B
Zone
CMS

13. PacketCable 1.1 - Primary Line
Gateway Powering
PSTN
SNMP
V
V Power Mgmt
Specifications MSO A
Zone
Released 11/28/00
CMS Availability
Gateway
PSTN
Gateway SNMP V
V
PSTN MSO C
Zone
SNMP V
CMS
V
MSO B
Zone
CMS

14. PacketCable 1.2 - Interconnect
Gateways
Border PSTN
CMS V
MSO A Border MSO B
Zone CMS Zone
Managed
IP Backbone
Border Gateways
CMS PSTN
Gateways
V
PSTN
MSO A MSO C
V
Zone Zone
Local Zones
Administrative Domains
Specs Released 12/29/00

15. EVOLVING
Current Softswitch
 Define connections
 Emulate functions
Intelligent Edge  Function re- Intelligent CPE
 Define policy location  Feature rich
 Connectivity  Value dilution  ETE control
 Network stickiness
 Service platform

16. FOOD FOR THOUGHT
Protect Investment