FMC: Driving the Transition to IMS

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• FMC Driving the Transition to IMS

Guanglu Wang Director Intl mSwitch Product
ManagementSeptember 10, 2007
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Everybody is Pursuing FMC

• Mobile Network Operators
• Mobile are becoming saturated
• ARPU is decreasing
• Competition from cable MSO

• Fixed Line Operators
• Losing customers to Wireless Substitution
• Losing customers tocable voice services
• Need to bundle with Mobile

• NGN/VoIP Operators
• High subscriber acquisition cost
• Must improve ARPU
• Must lower churn rate

• Cable/MSO Operators
• Mobile service is the only missing leg for
  quadruple play
• Competition from Telco IPTV

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What Customers Tell Us

• FMC, messaging and IPTV are among the most
  important service initiatives
• IMS evolution and modernizing legacy switching
  and access are the most important network
  initiatives
• HOWEVER
• How to justify the investment for building an
  full IMS network?
• What immediate benefit carriers can have for an
  full IMS network?
• What if IMS does not bring long term return as it
  has promised?

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Networks Today Before IMS
Mobile Voice
Data
Fixed Voice
Video
Different Back office
APPLICATION
Separate Networks
SESSION
Segregated Access Technologies
ACCESS
USER DEVICES
Separate User Devices
Networks today are mostly purpose built
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IMS Network Final Destination
Fixed Data
Mobile Voice
Fixed Voice
Video
Application Servers
APPLICATION
Common Session/Control
SESSION
Access IndependentOf Service Type
ACCESS
USER DEVICES
Converged Devices Possible
Share resources, enable multiple services, reduce
costs
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Question A Million Dollar One

• How do we get from point A to point B
• AND
• Without getting broken
• Without losing customer today
• Without being exposed to uncontrollable risk
• AND
• Without being got FIRED!

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UTStarcom Believes

• IMS has unclear future if it cannot bring both
  short term and long term benefits to the carriers
• FMC is a perfect application that bridges today
  and tomorrow
• Meets customer need today
• Build up a ROI-based FMC application is the first
  step toward full IMS network
• ROI-based FMC provides smooth migration path to
  full IMS architecture
• Meets customer need tomorrow

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First Step ROI-Based FMC
Mobile Voice
Data
Fixed Voice
Video
Function Specific Application Servers
APPLICATION
FMC Leverages Fixed Voice Softswitch
SESSION
FMC uses Cellular, Broadband, WiFi
ACCESS
USER DEVICES
Dual-Mode Handset
FMC meets customer requirements today, with
evolution to full IMS network architecture later
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FMC Evolution to IMS
FMCFEATURE SERVER
SIP
MAP
NGN SOFTSWITCH
GSM
0. ROI-based FMC Solution
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FMC Evolution to IMS
FMCFEATURE SERVER
SIP
MAP
NGN SOFTSWITCH
SG
GSM
MAP

• Disaggregate SG function from the existing
• Continuity FS

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FMC Evolution to IMS
FMCFEATURE SERVER
ISC
MAP
S-CSCF
SG
GSM
MAP
2. Fine tune the SIP interface to Isc to
interwork with S-CSCF
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FMC Evolution to IMS
HSS
Sh
FMCFEATURE SERVER
ISC
MAP
S-CSCF
SG
GSM
MAP
3. Disaggregate HLR/VLR function from existing
FMC and replace with Sh interface to interwork
with HSS
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FMC Evolution to IMS
HSS
Charging
Ro
Sh
FMC FEATURE SERVER
ISC
MAP
S-CSCF
SG
GSM
MAP
4. Provide the Ro Interface to interwork with
Charging Function
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FMC Evolution to IMS
HSS
Charging
Ro
Sh
FMCFEATURE SERVER
ISC
MAP
S-CSCF
SG
GSM
MAP
5. Fully comply with IMS with all internal logics
and external interfaces
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Continuity Path to IMS
Application Layer
SIP
ContinuityFMC
MSG
OSA
PTT
RBT
IM
MultiprotocolAccess
Gateway Interworking
HSS
FTTX
CSCF
PSTN
MGCF
DLC
NGN
Gateway
VoIP
IMS Converged Core
CDMA
ISDN
Core IP/Optical Backbone
GSM
POTS
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• THANK YOU

Contact Guanglu.Wang_at_utstar.com