The document discusses LTE and IMS technologies and their role in enabling new voice and messaging services. It introduces VoLTE as a solution for voice over LTE using IMS. IMS is presented as the solution that allows operators to continue providing services over LTE. The document also discusses the Rich Communication Suite (RCS) as an initiative to develop interoperable enriched communication services beyond voice and SMS. RADVISION solutions for IMS and RCS application development are also summarized.

1. Name: Title:Sagi Subocki Products Manager,
Head of IMS Segment
October 2010
LTE – The Future of IMS
RCS – Advanced Interoperable Services

2. Agenda
Introduction to LTE
The VoLTE initiative
LTE and IMS
RADVISION IMS Development solution
Rich Communication Suite
RADVISION RCS Developer Solutions

3. LTE - Introduction
LTE (Long Term Evolution) – foundation of 4G
All IP and Higher Bandwidth, low latency.
Enhances existing 3G UMTS
Efficiently supports multi-antenna technologies (MIMO).
High bandwidth—up to 20 MHz.
Scalable, LTE can operate in the existing 5-MHz UMTS
frequency bands, or in even smaller bands.

4. LTE – the end of Circuit Switch
LTE is an all-IP mobile network
No support for ‘traditional’ CS domain voice
New Voice and SMS solutions required

5. The future of operators
Top 25 LTE Operators Will Reach Over 200
million LTE Subscribers by 2015
CAPEX spending to reach $14 billion in 2015
- Maravedis research

6. Operators today face real challenges
Future of voice service usage:
Migration of customers towards mobile
VoIP solutions over their data networks
The App Store:
Services that run on the network are
not controlled by the network operator.
LTE:
All about IP connectivity. Need a solution for
traditional voice and SMS services.
Significantly improves network's quality – operators are
becoming "dumb" data pipes
Operators need to be able to provide new services
and stay relevant!

7. The Solution - IMS
The enabler for operators to continue to be the
service provider of all services over LTE.
Reliable, QoS, Secure,
Service Continuity, Roaming.
IMS will materialize –
the operators simply have
no other choice.

8. VoLTE - Voice over LTE
IMS profile
Started as “One Voice”
Initiative of 18 operators and handset vendors
GSMA adopted it
Work continues on the initial “One Voice” draft
Renamed to “VoLTE”
IMTC IMS Activity Group was selected by
“OneVoice” initiative to develop VoLTE test
specification.

9. VoLTE - Introduction
VoLTE profile defines a minimum mandatory
set of features in order to guarantee an
interoperable, high quality IMS-based telephony
service over LTE access networks
Voice and SMS in first stage - fast to fight new
options for mobile VoIP
“smart pipe” vs “dumb pipe”

10. VoLTE
Operators supporting VoLTE
3 Group
AT&T
Bell Canada
China Mobile
Deutsche Telekom/T-Mobile
KDDI
mobilkom austria
MTS
NTT DoCoMo
Orange
SKT
SoftBank
Telecom Italia
Telecom New Zealand
Telefónica
Telenor
TeliaSonera
Verizon Wireless
Vodafone

11. VoLTE
Handset manufacturers and equipment vendors
supporting VoLTE
Acme Packet
Alcatel-Lucent
Aylus, Camiant
Cisco
Colibra
Communigate
Comneon, Ericsson
Fujitsu
Genband
Huawei
LG
Motorola
Movial
Mu
NEC
Nokia
Nokia Siemens Networks
Qualcomm
RADVISION
Samsung
Sony Ericsson
Tekelec

12. How Will Networks Migrate to LTE?
Networks will not switch overnight from GSM and 3G to
LTE.
Operators will need to provide service continuity
VCC = Voice Call Continuity
SMS
Need to integrate new technologies to stay relevant
Operators making the move with different approaches.

13. IMS - Introduction
IP Multimedia Subsystem
Designed to provide flexible multimedia services anytime
and everywhere
Part of the core network, with interfaces to other
subsystems in the network
Technical specifications by GPP/3GPP2/TISPAN/Packet
Cable and others
Enables to ensure secure, reliable,
interoperable, roamed, services with QoS

14. How?
An architecture for IP based next generation service and
call control
Layered, functional architecture
Open application development framework
Common authentication, authorization and accounting
framework
Common media control and network management
functions
An architecture that will be used in all networks
Cellular
Fixed carrier networks
WiMax networks
Packet Cable networks
LTE

15. IMS is happening now!
By 2011 80% of surveyed service providers will run voice over IMS
(Infonetics).
Common IMS – Adopted by Cellular (3GPP/3GPP2), LTE, Fixed
Line (TISPAN), Cable (PacketCable 2.0), and WiMAX
A wide basic set of IMS standards which are identical to all networks.
Each access network has its own unique "flavor" added on top of it.

16. Key to IMS Application Success
Compliancy to the standards
Ensures interoperability
Easy deployment
“Worry-free” roaming
Smooth evolution to IMS SIP
Ability to add new IMS Services

17. IMS Compliancy Challenges
Many new network entities
Many new protocol requirements
New interfaces
Different access networks each behaving differently –
Cellular, Wireless, Fixed Line, Cable, LTE, WiMAX
New standards constantly added upon and revised

18. New Services in IMS Release 9
Public Warning System,
Earthquake and Tsunami
Warning System (ETWS)
Service Specific Access Control
Machine to Machine Network Improvements

19. New Deployment & Migration Scenarios in
IMS Release 9
Circuit Switched to VOIP, Service continuity
improvements
3GPP/Non-3GPP accesses -> LTE
LTE HNB (Femtocells)

20. IMS Express™ - RADVISION’s IMS
Developer Suite
RADVISION is a proven market leader in the Voice and
Video over IP and 3G protocol markets
Involved in SDO and IOT
RADVISION provides “future-proof solutions” and a clear
standard based roadmap
RADVISION’s IMS Express™
Comprehensive IMS product line
Full IMS compliancy - 3GPP, TISPAN, PacketCable 2.0, LTE,
WiMAX
RADVISION provides all the tools to meet the IMS challenge

21. RADVISION IMS Protocol Toolkits
Powerful and highly versatile set of tools to
facilitate development of IMS applications
Reduces development time and costs
Toolkits highlights:
Source Code
Multilayered APIs
Extensive choice of quick start sample applications
that enable full user control and flexibility
GUI test applications

22. IMS Express™ - RADVISION’s IMS Developer
Suite
IMS/NGN Protocol Toolkits
IMS SIP Developer Suite
• IMS SIP Toolkit
• MSRP Toolkit
• XDM Toolkit
• ICE/STUN/TURN NAT Traversal Toolkit
IMS DIAMETER Toolkit
IMS MEGACO/H.248 Toolkit
IMS Advanced-RTP/RTCP Toolkit
IMS Server Platform
IMS Client Suite
ProLab™ IMS Testing Solution
IMS
MEGACO/
H.248
Toolkit
IMS SIP
Developer
Suite
IMS
DIAMETER
Toolkit
IMS Server Platform
ProLabTM
IMS Test
Solution
IMS
Advanced
RTP/RTCP
Toolkit
IMS Client
Suite
Full IMS compliancy - 3GPP, TISPAN, PacketCable 2.0, LTE, WiMAX

23. RADVISION IMS SIP Developer Suite
Basic SIP TK Add-Ons Toolkits
SIP Toolkit RTP
Stack
SDP
Stack
SCTP
Add-On
SigComp
Add-On
IMS
Add-On
XML
Schema
Package
MS
Add-on
(CSTA)
STUN ICE
NAT T. Toolkits
ICE
XDM
Toolkit
MSRP
Toolkit
IPSec
Add-on
STUN
Presence &
IM Add-on
TURN

24. SIP Toolkit
SDP
Stack
SigComp
Add-On
IMS
Add-On
IPSec
Add-on
Advanced
RTP
Toolkit
IMS &
Media
Add-On
IMS LTE Package

25. NGN/IMS features – partial list
SigComp (RFC 3320, RFC 4896,RFC 5049. . )
AKA-MD5 (RFC 3310)
IKE
Security agreement (RFC 3329)
IPsec Transport Level and Tunnel mode
Media authorization (RFC 3313)
P-headers
Service-route mechanism (RFC 3608)
Reg-event package (RFC 3680)
IPv6
Resource Priority Header (RFC 4412)
Extension of reason – RFC (4411)
GRUU
Preconditions (RFC 4032)
IMS resource reservation (RFC 3312)
Path header (RFC 3327)
SIP outbound
ENUM
SDP extensions
RTCP – Extended Reports
RTCP – Feed Back
P-preferred-identity
P-access-network-
info
P-asserted-identity
P-called-party-id
P-charging-vector
P-visited-network-id
P-associated-uri
P-profile-key
P-answer-state
More . .
Other IMS capabilities supported by
additional modules:
SIMPLE (Presence & IM)
SCTP Transport layer
STUN, TURN & ICE
IMS LTE Package

26. Presence-based Services
Presence – IETF/OMA SIMPLE (SIMPLE Add-On)
Configuration for Contact lists, Preferences, Privacy,
Security – OMA XDM (XDM Toolkit)
Instant Messaging, File and Image Transfer – IETF MSRP
(MSRP Toolkit)

27. Beyond voice :
Rich Communication Suite (RCS)

28. Enriched, interoperable, communication services
Today, only (switched) voice, SMS or e-mail, are
really interoperable
Existing enriched communication services are not
standard or interoperable
There is a need for interoperable enriched
communication services with multimedia
capabilities, beyond voice and SMS

29. Enriched Call
Call enriched with multimedia
Sharing
Enhanced Phonebook
Contacts enhanced with capabilities
and rich presence
Enhanced Messaging
Conversational messaging
experience
RCS is an evolution of legacy services focusing on user
experience

30. Agreed set of protocols and standards, based on IMS,
allowing full interoperability with different operators and
vendors
Network
vendor B
Operator
2
Operator
1
Operator
3Handset
manufacturer X
Handset
manufacturer Y
Network
vendor A

31. Over 40 companies support RCS,
hosted by GSMA
major operators, handset vendors, network vendors
…

32. Elements of RCS Presence-based Services
Based on Open Standards
Includes the following:
Presence – IETF/OMA SIMPLE
Configuration for Contact lists, Preferences, Privacy,
Security – OMA XDM/IETF XCAP
Instant Messaging, File and Image Transfer – IETF
MSRP

33. Applications of Presence-based Services
SIP Networks
IMS/NGN Networks
Mobile phones/PDA
PC and embedded voice/video/chat clients
Set-top boxes and IPTV clients
Video-share applications
Interactive TV
Gaming applications and appliances
Collaboration solutions
IP PBX
IMS Rich Communication Suite (RCS)

34. Based on the Telecommunication standard bodies requirements – OMA
(Open Mobile Alliance) and 3GPP IMS.
Web market segment, XMPP (Gtalk).
LDAP capabilities
Full solution answering all standard requirements :
3GPP IMS, OMA, and Gtalk (XMPP).
RADVISION - Advanced Service Framework
SIP Toolkit
SigComp
Add-On
IMS
Add-On
XDM
Toolkit
Presence &
IM Add-on
Gtalk (XMPP)
Advanced Service Layer

35. Skype.
Providing a solution that bridges presence over networks compliant
to the SIMPLE standard (including XDM, LDAP, Gtalk (XMPP), and
Skype).
Instant Messaging using MSRP, Gtalk, Skype.
Advanced Service Framework phase II
SIP Toolkit
SigComp
Add-On
IMS
Add-On
XDM
Toolkit
MSRP
Toolkit
Presence &
IM Add-on
Gtalk (XMPP)
Advanced Service Layer
Skype

36. ASF Components for RCS:
SIP Toolkit,SIMPLE Add-On,
IMS Add-On
Implements full set of SIMPLE-related RFCs, 3GPP and
OMA specifications
Can be used for development of any Presence and
Instance Messaging application

37. ASF Components for RCS:
MSRP Toolkit
Supports session and message-based Instant Messaging,
as well as File Transfer and Image Sharing
Can be used to build wide variety of applications from
cell phones to the fixed clients and high-end servers.
Implements IETF RFC4975

38. ASF Components for RCS:
XDM Toolkit
XDM is used to access and manipulate various XML
document stored across the network, all with
established identity, authorization and appropriate
security
Complies with OMA definitions

39. Service Network Architecture

40. ASF Optional Component:
FW/NAT Traversal TK
Supports set of open standards for FW/NAT Traversal including:
STUN (Simple Transfer of UDP through NATs)
TURN (Traversal Using Relay NATs)
ICE (Interactive Connectivity
Establishment)
Easily integrated with the SIP
Toolkit
Interoperable with wide variety
of STUN and TURN servers

41. LTE, IMS & RCS – the Future of Telecom!
With LTE – IMS is here to stay
RCS – The future way of advanced interoperable
services

42. Where to Find Us?
Corporate site Community Blogs Newsletter twitter
This seminar, online:
http://community.radvision.com/page/futurecomm-2010/

43. Name: Title:Sagi Subocki
sagis@radvision.com
Products Manager
Thank you!