1
#VoLTELessons
Lessons Learned:
Implementing VoLTE Roaming
Mary Clark
Chief Marketing Officer, Syniverse
@SyniverseCMO
2
#VoLTELessons
Global VoLTE Deployments
Commercially launched VoLTE
Investing in VoLTE deployments
111 MNOs
investing in
...
3
#VoLTELessons
VoLTE Market Forecast
83% of carriers surveyed say
they will deploy VoLTE by 2016
- Infonetics
72M VoLTE r...
4
#VoLTELessons
Already
Launched
Next 6
Months
6-12 Months
12 Months or
Beyond
Undecided
If you are planning to launch LTE...
5
#VoLTELessons
Haven’t
Launched Home
Network Yet
Next 6 Months 6-12 Months
12 Months or
Beyond
Undecided
If you are plann...
6
#VoLTELessons
Keith Dyer, Founder and Editor, The Mobile Network
 Founded The Mobile Network in 2013, introducing a new...
7
#VoLTELessons
Keith Dyer
Founder and Editor, The Mobile Network
@keithdyer
#VoLTELessons
VOLTE – operator
experiences
12/10/2015 VoLTE I Operator Experiences and Learning 9
• Clear commitment to the service
• Bu...
VOLTE – operator
experiences
12/10/2015 VoLTE I Operator Experiences and Learning 10
• Optimisation and tuning of radio ne...
VOLTE – operator
experiences
12/10/2015 VoLTE I Operator Experiences and Learning 11
“Our customers love it…”
Customer ben...
VOLTE – operator
experiences
12/10/2015 VoLTE I Operator Experiences and Learning 12
Do operators love it more?
• Long ter...
VOLTE – operator
experiences
12/10/2015 VoLTE I Operator Experiences and Learning 13
Limited VoLTE roaming to date… why?
•...
VOLTE – operator
experiences
12/10/2015 VoLTE I Operator Experiences and Learning 14
Well, why enable VoLTE roaming anyway...
VOLTE – operator
experiences
12/10/2015 VoLTE I Operator Experiences and Learning 15
The technical hurdles
• RAVEL - compl...
VOLTE – operator
experiences
12/10/2015 VoLTE I Operator Experiences and Learning 16
CONCLUSIONS AND
QUESTIONS
• How shoul...
17
#VoLTELessons
John Wick
Senior Vice President and General Manager
Mobile Transaction Services, Syniverse
18
#VoLTELessons
VoLTE Interconnect vs. VoLTE Roaming
IPX
MNO A MNO B
VoLTE Interconnect
IPX
MNO A MNO B
VoLTE Roaming
MNO...
19
#VoLTELessons
Challenges
 Lawful intercept/Emergency calling
 Lawful intercept – allows home network, but not at
visi...
20
#VoLTELessons
VoLTE Roaming Scenarios
Local Breakout
Advantages
 Session awareness at the served network
 Visibility ...
21
#VoLTELessons
First Transoceanic VoLTE Roaming
• Collaboration with an American and Japanese operator to enable the wor...
22
#VoLTELessons
 Connection setup and call quality are better than 3G
 Real time control of voice traffic - eliminates ...
23
#VoLTELessons
 Operators must understand how their roaming
partner(s) supports S8HR
 How QCIs are configured
 Maximu...
24
#VoLTELessons
Q&A
25
#VoLTELessons
Thank You!
For more information, visit www.syniverse.com
or follow us @Syniverse
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Lessons Learned: Implementing VoLTE Roaming

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Keith Dyer, Founder and Editor of The Mobile Network (@tmnmag) and Syniverse (@Syniverse) explore what’s driving the rapid move to VoLTE and what can be learned from the operators and service providers that have already implemented these next generation LTE services for roaming.

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Lessons Learned: Implementing VoLTE Roaming

  1. 1. 1 #VoLTELessons Lessons Learned: Implementing VoLTE Roaming Mary Clark Chief Marketing Officer, Syniverse @SyniverseCMO
  2. 2. 2 #VoLTELessons Global VoLTE Deployments Commercially launched VoLTE Investing in VoLTE deployments 111 MNOs investing in VoLTE - GSA 30 MNOs in 21 countries with commercially launched VoLTE voice service - GSA 755million LTE connections worldwide - GSA 442 commercially launched LTE networks - 147 countries - GSA
  3. 3. 3 #VoLTELessons VoLTE Market Forecast 83% of carriers surveyed say they will deploy VoLTE by 2016 - Infonetics 72M VoLTE roaming MOUs in 2015 278M VoLTE roaming MOUs in 2016 VoLTE roaming MOUs will grow by CAGR of 145% over next 5 years to reach 4.7B by 2020 - HOT TELECOM 600 million Smartphone users worldwide will use VoLTE by 2018 as their default voice service - Analysys Mason VoLTE connections forecast – Analysys Mason, 2015 Current state of VoLTE launches – Analysys Mason, 2015
  4. 4. 4 #VoLTELessons Already Launched Next 6 Months 6-12 Months 12 Months or Beyond Undecided If you are planning to launch LTE/VoLTE on your home network, what is your timeline?
  5. 5. 5 #VoLTELessons Haven’t Launched Home Network Yet Next 6 Months 6-12 Months 12 Months or Beyond Undecided If you are planning to launch LTE/VoLTE roaming, what is your timeline?
  6. 6. 6 #VoLTELessons Keith Dyer, Founder and Editor, The Mobile Network  Founded The Mobile Network in 2013, introducing a new voice to the media covering mobile network technology.  17 years experience covering the mobile network technology ecosystem as a journalist and editor.  Tracked the development of the VoLTE ecosystem since its beginnings. John Wick, Senior Vice President and General Manager – Mobile Transaction Services, Syniverse  Responsible for the management and growth of Syniverse’s IP, SS7 and number portability product lines.  Joined Syniverse in 1993 as a senior critical support analyst with the network operations department.  Certified Six Sigma Black Belt. Today’s Expert Panelists
  7. 7. 7 #VoLTELessons Keith Dyer Founder and Editor, The Mobile Network @keithdyer
  8. 8. #VoLTELessons
  9. 9. VOLTE – operator experiences 12/10/2015 VoLTE I Operator Experiences and Learning 9 • Clear commitment to the service • But it’s not been easy… #VoLTELessons
  10. 10. VOLTE – operator experiences 12/10/2015 VoLTE I Operator Experiences and Learning 10 • Optimisation and tuning of radio network • New characterisation and visibility for quality assurance • Extensive and complex testing • Intensive efforts in IMS • Integration Billing and BSS • Device support • Consumer education “This is the most complex thing I’ve ever worked on in 20 years.” #VoLTELessons
  11. 11. VOLTE – operator experiences 12/10/2015 VoLTE I Operator Experiences and Learning 11 “Our customers love it…” Customer benefits • Set-up time SK Telecom customer survey • Call quality • Battery upside • Service richness? #VoLTELessons
  12. 12. VOLTE – operator experiences 12/10/2015 VoLTE I Operator Experiences and Learning 12 Do operators love it more? • Long term spectrum turn-off • More efficient use existing spectrum • Signalling efficiency of all IP • Potential for new (IMS) services • Supporting infrastructure enables VoWifi #VoLTELessons
  13. 13. VOLTE – operator experiences 12/10/2015 VoLTE I Operator Experiences and Learning 13 Limited VoLTE roaming to date… why? • LG UPlus & KDDI • LG UPlus & Smartone • NTT and KT Credit: Ovum Whitepaper, Feb 2015 #VoLTELessons
  14. 14. VOLTE – operator experiences 12/10/2015 VoLTE I Operator Experiences and Learning 14 Well, why enable VoLTE roaming anyway? • Customer access to high quality voice and video calls • Keep customers on-brand • Ensure quality for high value customers • Long term – 2/3G switch off in home/visited networks • Fate – it’s going to happen anyway #VoLTELessons
  15. 15. VOLTE – operator experiences 12/10/2015 VoLTE I Operator Experiences and Learning 15 The technical hurdles • RAVEL - complexity • S8HR – lacks feature support Fix it at home first… India Times – December 2015 #VoLTELessons
  16. 16. VOLTE – operator experiences 12/10/2015 VoLTE I Operator Experiences and Learning 16 CONCLUSIONS AND QUESTIONS • How should we do it? Real commitments, it will happen but operators are asking… • When should we deploy? #VoLTELessons
  17. 17. 17 #VoLTELessons John Wick Senior Vice President and General Manager Mobile Transaction Services, Syniverse
  18. 18. 18 #VoLTELessons VoLTE Interconnect vs. VoLTE Roaming IPX MNO A MNO B VoLTE Interconnect IPX MNO A MNO B VoLTE Roaming MNO A Subscriber @ Home MNO B Subscriber @ Home MNO A Subscriber Roaming
  19. 19. 19 #VoLTELessons Challenges  Lawful intercept/Emergency calling  Lawful intercept – allows home network, but not at visited network location  Emergency calling  Voice Call Continuity (moving from VoLTE to CS)  No service visibility for VPMN  Distinguishing data traffic from VoLTE by APN and QCI only  SMS not distinguishable from signaling  Cannot retail bill based on TAP VoLTE Roaming Scenarios Home-Based Routing (S8HR) Advantages  Faster to deploy than LBO – Uses same GTP tunnel as LTE Data Roaming traffic  Utilizes the same components already in evolved packet core (VPMN does not require IMS Core)  Can use same data IOT charges with roaming partners, no need to update roaming agreements for IMS services  Uses existing TAP and RAEX with only minor changes IPX IPX E-UTRAN MME VPMN A-Party HPMN A-Party B-Party HSS P-CSCF S-CSCF TAS SGW DRA IBCF VoLTE Roaming Interconnect IMS IMS eXchange PCRF PGW
  20. 20. 20 #VoLTELessons VoLTE Roaming Scenarios Local Breakout Advantages  Session awareness at the served network  Visibility into the control and media plane of a call or video session taking place  Gives ability to offer lawful intercept and emergency call handling  Continuity of a voice call between LTE and CS  Support for billing model - TAP for retail billing Challenges  Complexity (flexibility and power, but more complex)  IMS interoperability challenges with LBO – different vendors/different implementation  Requires multiple feeds from many network elements for both VPMN and HPMN  LBO for VoLTE with S8HR for data adds complexity  New TAP record types (mobile session/messaging event) that are unused today IPX IPX xCSCF MME VPMN A-Party HPMN A-Party B-Party HSS P-CSCF S-CSCF TAS IBCF DRA IBCF VoLTE Roaming VoLTE Interconnect EPC IMS IMS IMS eXchange IMS eXchange PCRF IBCF
  21. 21. 21 #VoLTELessons First Transoceanic VoLTE Roaming • Collaboration with an American and Japanese operator to enable the world’s first transoceanic VoLTE roaming call based on an S8HR architecture Established VoLTE roaming between South Korea and Japan • LG Uplus subscribers from Korea roaming onto the KDDI network in Japan Launch of the world’s first commercial VoLTE roaming service • LG Uplus subscribers from Korea roaming onto the SmarTone network in Hong Kong Lessons Learned: VoLTE Roaming Trials and Implementation
  22. 22. 22 #VoLTELessons  Connection setup and call quality are better than 3G  Real time control of voice traffic - eliminates need for CAMEL, helps control fraud  Handsets do not default to VoLTE for roaming  Operators must work with handset vendors to modify defaults  Assumed that the home operator would support lawful intercept.  Not valid in all cases due to regulations within countries.  Charging for VoLTE needs to be worked out by each operator.  Example: Some operators charge LTE data IOT rates for VoLTE. If operators prefer a different IOT they must distinguish VoLTE from LTE data using APNs/QCIs. Lessons Learned – S8HR
  23. 23. 23 #VoLTELessons  Operators must understand how their roaming partner(s) supports S8HR  How QCIs are configured  Maximum bit rate for each QCI  Number of APNs and which APNs are supported per QCI  Video calls started during voice calls difficult to distinguish by VPMN  Appears as another data flow so two separate TAP records are created  HPMN needs to consider correlation of records for retail billing  SMS is viewed as signaling  If signaling is not charged between roaming partners SMS is no charge  May open the door for messaging SPAM  GSMA recommends charging for signaling to alleviate potential issues Lessons Learned – S8HR
  24. 24. 24 #VoLTELessons Q&A
  25. 25. 25 #VoLTELessons Thank You! For more information, visit www.syniverse.com or follow us @Syniverse

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