The Radisys webinar on July 9, 2014, discussed the slow adoption of VoLTE in the Asia-Pacific region despite the rapid growth of LTE as a mobile technology. It highlighted Korea as a leader in VoLTE deployment, emphasizing the benefits of higher audio quality and increased average revenue per user (ARPU). The session also addressed industry hesitancy towards VoLTE investments and the need for an efficient media resource function (MRF) to support converged IP networks.

1. VoLTE in Asia Pacific
from Delay to Deploy
Radisys Webinar
July 9, 2014
Ray Adensamer
Director of Marketing, Radisys
ray,adensamer@radisys.com

2. Topics
 VoLTE Activity in APAC Region
 Industry Hesitancy around VoLTE…. Why?
 Business Case for deploying VoLTE
 Considerations for the IMS MRF
in your VoLTE Deployment

3. LTE is fastest growing Mobile
Broadband Technology
Source:
2G, 3G, LTE Mobile Services and Subscribers
Infonetics, June, 2014
Regional Mobile Broadband
Subscribers – by Technology
Worldwide Mobile Broadband
Subscribers – by Technology

4. Top LTE Operators Worldwide
Source:
2G, 3G, LTE Mobile Services and Subscribers
Infonetics, June, 2014
Other 36,500,000
Total 205,000,000

5. LTE Subscribers by Region
Source:
2G, 3G, LTE Mobile Services and Subscribers
Infonetics, June, 2014

6. But what about VoLTE?
 LTE growth is exceptional
• Primary driver is faster data speeds for 3G network offload.
 However, VoLTE service launches are lagging
(Korea is one notable exception…)

7. VoLTE Market Opportunity
Source:
VoLTE and OTT Mobile VoIP Services and Subscribers
Infonetics, June, 2014
0
500
1000
1500
2013 2014 2015 2016 2017 2018
Subscribers(millions)
LTE and VoLTE
Subscriber forecast
LTE VoLTE

8. VoLTE Success in Korea
 Korea is the early world leader in LTE deployments
• Quick to achieve high LTE subscriber penetration across country
• ASIDE: Radisys small cell technology in Korean LTE deployments
 Quickly followed by VoLTE launches in 2012
• SK Telekom, KT, LG Uplus
 High LTE penetration facilitated VoLTE deployment success
• Minimized need for CSFB and SRVCC
• Resulted in good VoLTE adoption
• Korean users “hearing” benefit of HD audio quality
• ARPU up!

9. VoLTE Launches
 2012:
• SK telecom (~15M LTE, 8M VoLTE Subs)
• LG U+ (~9M LTE)
• KT (~8M LTE)
 2013:
• T-Mobile US
 2014:
• PCCW Hong Kong
• 3 Hong Kong
• AT&T
• SingTel
All
Launched in
May 2014
Source:
VoLTE and OTT Mobile VoIP Services and Subscribers
Infonetics, June, 2014

10. VoLTE Plans in Japan and China
Japan
• NTT DoCoMo has large LTE deployment today (~21M subs).
– On June 24, 2014 launched their VoLTE service
• KDDI Au 4G LTE service has 15M LTE subscribers
– VoLTE launch planned for later in 2014.
China
• China Mobile deploying LTE services
– China Mobile will launch VoLTE, RCS and updated audio RBT to VoLTE by
end of 2014
• China Unicom and China Telecom
– considering VoLTE in future

11. Poll Question
Are you using VoLTE services today?
A. Yes - Using VoLTE today.
B. No - VoLTE is available in my geographic country or
region, but currently not using VoLTE services.
C. No - VoLTE services not available.

12. Summary of LTE and VoLTE activity
0
200
400
600
800
1000
1200
2013 2014 2015 2016 2017 2018
Subscribers(millions)
LTE and VoLTE
Subscriber forecast
LTE VoLTE
 LTE is fastest growing mobile
broadband technology
• Broad support and rollout plans in
all global markets
• Both GSM and CDMA operators
moving to LTE
 Primary driver has been fast data
speeds, and 3G data offload
 But VoLTE launches are lagging LTE rollout.
 Korea has shown the world the benefits of broad LTE
deployment, and increasing ARPU through VoLTE services
Majority of world’s operators have been slow
to deploy VoLTE. Why?....

13. Topics
 VoLTE Activity in APAC Region
 Industry Hesitancy around VoLTE…. Why?
 Business Case for deploying VoLTE
 Considerations for the IMS MRF
in your VoLTE Deployment

14. 14Radisys Corporation Confidential
Industry Hesitancy to deploy IMS for VoLTE
Why?
Perceptions against
VoLTE investments
Reality
Voice is a flat/declining revenue
stream
• Still the largest contributor to mobile
operator revenues and profitability
Use CSFB for
voice services on LTE
3G networks work fine for voice
• Data falls back to 3G speeds as well.
• VoLTE call setup much faster.
• VoLTE sounds better.
• Early VoLTE deployments prove operators
can charge premium and increase ARPU.
VoLTE handsets not ready, limited
selection, poor battery life
• 2H14 will see increasing variety of VoLTE
devices with improved battery life
IMS systems, and associated
integration, is costly and complex
• Myopic focus on IMS investment only,
limits understanding of broader business
case benefits…

15. 15Radisys Corporation Confidential
Internet
High-Level Comparison of
Mobile Network Technology
ATM/SONET Circuit Core
(Voice)
IP Packet Core
(Data)
Enhanced Packet Core
(Voice, Video, Broadband Data)
3G Mobile
LTE
IP Access
Internet
IMS
Proprietary Voice
Service Platforms
VoLTE
TAS
MRF
IMS = IP Multimedia Subsystem
TAS = Telecom Application Server
MRF = Media Resource Function
• Two separate voice and data
networks to manage
• Voice Services supported on
separate, proprietary service
platforms
• One converged EPC for all IP
services simplifies
management
• Open IMS supports VoLTE,
with other interactive
multimedia services
• OneMRF for all services
VoLTE strategy facilitates migration to
converged EPC, achieving OPEX savings

16. 16Radisys Corporation Confidential
Is an IMS expensive?
Compared to 4G spectrum – No!
Motivation for the CFO:
A VoLTE deployment can
reduce or defer new 4G spectrum purchases,
easily justifying an IMS investment for VoLTE

17. Summary:
Motivations to Deploy VoLTE
 Voice still the “Killer App”
 Single IP network
 Spectrum Refarming
 Revenue Upside beyond
VoLTE services
 Better call quality
 Lower call setup times

18. 18Radisys Corporation Confidential
Topics
 VoLTE Activity in APAC Region
 Industry Hesitancy around VoLTE…. Why?
 Business Case for deploying VoLTE
 Considerations for the IMS MRF
in your VoLTE Deployment

19. 19Radisys Corporation Confidential
Triggers for Change
 LTE leading to converged IP network for mobile industry
 VoLTE driving need for IMS
• IMS provides opportunity for Common Media Resource Function (MRF)
 Video services
• Existing media processing resources often don’t support video
 Cloud deployment
• Increasing requirements for media processing in Cloud
 OTT and carrier networks are blending/overlapping
• Internet users getting telecom services (WebRTC)
• Telecom service providers reaching out to Internet users
Increasing requirements for reusable,
efficient media processing infrastructure

20. 20Radisys Corporation Confidential
Real-time IP Media Processing
The Foundation for many Communication Services
Question?
What do all these
communication services
have in common?

21. 21Radisys Corporation Confidential
Real-time IP Media Processing
The Foundation for many Communication Services
Question?
What do all these
communication services
have in common?
Answer:
They all share an
underlying need for
real-time IP-based
voice and video
RTP media processing
One Common MRF, shared amongst all
Real-time Communication Services.

22. 22Radisys Corporation Confidential
Summary – One MRF Strategy
 LTE and IMS
• Deploying LTE and IMS requires MRF that delivers common
features and services across access networks and applications.
 As you deploy additional real-time communication
services…
• Business objective is efficient and scalable reuse of
media resources
• VoLTE, WebRTC, Transcoding, Conferencing, plus many more…
– all can and should use same Common MRF
The more services that share the MRF,
the bigger the benefits

23. 23Radisys Corporation Confidential
Traditional Service Platforms
Limited Media Processing Reuse
• Play Media <video>
• Collect Digits <Selection>
• Transcode <video>
• Play Media <audio>
• Collect Digits <PIN>
• Transcode <audio, video>
• Mixing <audio, video>
Media Processing Media Processing
Signaling
Media
IVVR can’t reuse
Conferencing
Resources
Conferencing can’t
reuse IVVR resources
IVVR Conferencing
• Execute IVVR dialog with
end user
• Verify PIN
• Mix Media for Conference
Participants
IVVR
Call Logic
Conferencing
Call Logic

24. 24Radisys Corporation Confidential
IMS Principles – Step 1
Decouple Application from Media Processing
• Execute IVVR dialog with
end user
• Verify PIN
• Mix Media for Conference
Participants
IVVR
Call Logic
Media Processing
Conferencing
Call Logic
Media Processing
Signaling
Media
Media
Control
Media
Control
IVVR Conferencing
• Play Media <video>
• Collect Digits <Selection>
• Transcode <video>
• Play Media <audio>
• Collect Digits <PIN>
• Transcode <audio, video>
• Mixing <audio, video>

25. 25Radisys Corporation Confidential
IMS Principles – Step 2
Share Media Processing across Applications
IVVR Conferencing
Shared
Media Processing
Signaling
Media
Media Control
• Play Media <audio, video>
• Collect Digits <Selection, PIN>
• Transcode <audio, video>
• Mixing <audio, video>
• Execute IVVR dialog with
end user
• Verify PIN
• Mix Media for Conference
Participants
IVVR
Call Logic
Conferencing
Call Logic

26. 26Radisys Corporation Confidential
EPC
Switch
Media Processing decisions for new
services often done in isolation
IMS
MTAS
Mr/Mr’ - SIP
Mp - H.248
MRF
E.g. start with VoLTE and RCS
 Applications run on IMS MTAS
(Mobile Telephony Application Server)
 Media processing done in IMS MRF
 RTP streams connect to
Enhanced Packet Core (EPC)
 IMS MRF has management system(s),
which integrate with BSS/OSS

27. 27Radisys Corporation Confidential
EPC
Switch
Adding more services usually means
more media processing platforms
AS
Video
CONF
IMS
MTAS
AS
VAS
AS
Audio
CONF
SIP
MSML
SIP
MSML
SIP
VXML
MRF
Audio
CONF
MRF
Video
CONF
MRF
VoLTE
MRF
VAS
More Services…
 Multimedia Conferencing
 Voice/Video Messaging
 Video RBT
 IVVR
 Mobile Adverts
Result?
 More Application Servers
 More MRF resources and
vendors
SIP,
H.248

28. 28Radisys Corporation Confidential
EPC
Switch
WebRTC Services
Also Need Media Processing
AS
Video
CONF
IMS
MTAS
AS
VAS
Web
Comms
Server
AS
Audio
CONF
SIP
MSML
SIP
MSML
SIP
VXML
MRF
Audio
CONF
MRF
Video
CONF
MRF
VoLTE
MRF
VAS
Web
Media
Processing
JSR-309,
REST
 WebRTC services
will required similar
media processing
Additional
Requirements
 New Codecs
• VP8, OPUS
 Web-friendly APIs
• JSR-309
• REST
SIP,
H.248

29. 29Radisys Corporation Confidential
EPC
Switch
VoLTE and WebRTC Transcoding
AS
Video
CONF
IMS
MTAS
Transcode
Controller
AS
VAS
Web
Comms
Server
AS
Audio
CONF
SIP
MSML
SIP
MSML
H.248 SIP
VXML
RFC
4117 B2BUA
No Control
MRF
Audio
CONF
MRF
Video
CONF
B2BUA Media
Transcoding
MRF
VoLTE
MRF
VAS
Web
Media
Processing
Media
Transcoding
JSR-309,
REST
• Transcoding critical to scalable WebRTC services
• Audio: AMR-WB (VoLTE) <-> OPUS (WebRTC),
• Video: H.264 720p (3GPP) <-> VP8 (WebRTC)
• Transcoding in Decomposed Border Architectures
• Separate Media Path from Signalling Layer
• Core vs Edge Transcoding
• 3PCC vs Inline (B2BUA)

30. 30Radisys Corporation Confidential
EPC
Switch
RESULT?
Proliferation of Media Processing
AS
Video
CONF
IMS
MTAS
Transcode
Controller
AS
VAS
Web
Comms
Server
Many
Communication
Applications
AS
Audio
CONF
SIP
MSML
SIP
MSML
SIP
VXML
RFC
4117 B2BUA
Many
Media Processing
Platforms
Many OSS/BSS systems and integrations
MRF
Audio
CONF
MRF
Video
CONF
B2BUA Media
Transcoding
MRF
VoLTE
MRF
VAS
Web
Media
Processing
Media
Transcoding
JSR-309,
REST
SIP,
H.248

31. 31Radisys Corporation Confidential
Solution: Many Mobile Applications
Sharing Common MRF
B2BUA
Transcode
One
Common MRF MRF
EPC
Switch
Codec Y
Minimize OPEX with One Common MRF,
Shared amongst all real-time
IMS, web, and transcoding requirements.
Codec X
AS
Video
CONF
AS
VoLTE
MTAS
Transcode
Controller
AS
VAS
Web
Comms
Server
Many
Communication
Applications
AS
Audio
CONF
SIP
MSML
SIP
MSML
SIP
VXML
JSR-309,
REST
RFC
4117
One
OSS/BSS
One MRF
 Multi-Service
 Multi-Media
 Multi-Control
Protocol
 Multi-Codec
 HW, SW,
or Cloud
 Consistency of
Media
Delivery/QoS
SIP,
H.248

32. Radisys MRF available in
various form factors
MPX-12000 Software MRF
Broadband MRF with
built-in HW reliability and
best densities
Best scalability using
Linux and COTS HW
Virtualized
Media Processing
Virtualized deployment for
Cloud, OTT and WebRTC
(KVM, VMware)
MPX-OS
The unified architecture and code base used in all our products that provides partners
and customers an unparalleled portfolio of MRF’s offering common…
• Media Processing Features
• Control Interface Options
• Management Capabilities

33. 33Radisys Corporation Confidential
Radisys MRF
Voice Quality Enhancement (VQE)
VoIP Audio Quality
Challenge
Radisys VQE
Solution
Benefit
Noise  Noise Gating
 Noise Reduction
 Noisy Line Detection
 Improved
VoIP audio quality
 Accelerated
Subscriber Growth
 Maximized
Revenue Growth
 Reduced
Customer Churn
Packet Loss  Packet Loss
Concealment
Acoustic Echo  Acoustic Echo
Cancellation (AEC)
Monitoring and
Reporting
 Audio Metrics
 Packet Metrics
 AEC Metrics
 Improved Monitoring
Capability
 Better management
support for SLAs

34. Radisys WebRTC Capabilities
 WebRTC to SIP Interworking
• Transcoding, Transrating, and
Interworking between
– WebRTC and VoLTE (SIP) endpoints
– Between VP8 and H.264, H.263, MPEG-4
• Applicable for IMS or OTT delivery
WebRTC SIP SIP
Client
 WebRTC endpoint support
• Radisys MRF supports VP8 video
codec
• Service examples:
Streaming, RBT, VoD, Video Adverts
WebRTC
 Unified Collaboration
• Mix WebRTC and SIP endpoints
• Flexible switched video or CP displays
• Automatic transcoding and transrating
• Applicable for IMS or OTT delivery

35. Transcoding Deployment Flexibility
Radisys MRF
SIP/MSML
RFC 4117
H.248
CSCF
RTP RTP
3PCC
3rd Party Call Control
 Control interface options for
IMS CSCF control
• RFC 4117 SIP
(transcoding only)
• SIP/MSML
(full MRF feature control)
• H.248
 Benefits:
 Only calls requiring
transcoding get treatment
(not all calls)
 Per-stream control of
services media processing
and media conditioning
SIP SIP
Radisys MRF
RTP RTP
B2BUA
InLine
via Back-to-Back User Agent (B2BUA)
 Deploy direct in call path
 MRF includes B2BUA for
SIP signalling interpretation
• No external control
required
• Selective media
conditioning based on
rules and triggers
• No increase in signaling
on the adjacent SBCs

36. Market Leadership in
IP Media Processing
Enabling Real-time Audio and Video Communications
for mobile operators, & web/OTT service providers
20+ Some of our
Customers
#1 Global
Market Share
Leader1
1- Source: Service Provider VoIP and IMS Equipment and Subscribers, Media Server/MRF, 4Q12, Infonetics
Other
US, EUROPE & ASIA

37. Copyright© 2014 - Radisys Corporation
all powered by Mavenir’s
mOne Convergence Platform
enabled by…
Many VoLTE deployments underway…
Media Resource Function
(IMS MRF)

38. Benefits of working with Radisys
 Benefits for Service Providers
• One MRF platform for all real-time revenue generating services.
• The more services sharing a single MRF platform…
…. the better your operational savings.
 Benefits for Telecom Service Developers
• You focus on IMS call control, orchestration, and integration.
• Partner with Radisys for your IP media processing requirements.
Enabling Wireless Infrastructure Solutions
www.radisys.com/mrf
info@radisys.com
For More Information

39. Thank You!
Ray Adensamer
Director of Marketing, Radisys
ray,adensamer@radisys.com
Questions?
Available for download from
http://go.radisys.com/ebookVoLTEfromDelaytoDeploy
Please complete the
short survey at the end
of the webinar