HD Voice: some lessons and perspectives

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Orange service provider vision for implementation of the HD Voice. Presented during IMTC 20th Anniversary Forum in Porto, Portugal

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HD Voice: some lessons and perspectives

  1. 1. HD Voice: some lessons and perspectives. October 2013 yannick.mahieux@orange.com Hear Better – Feel Closer
  2. 2. HD Voice over mobile in a nutshell What is HD Voice? Three factors Basic technical components • Wide band speech [50 Hz / 7 kHz] • Clarity, comfort, presence • To enhance Voice value • Network: QoS and transparency • Device: Acoustics, Noise reduction • Communication: « make it known » • Wide band codec: AMR-WB, EVRC-NW • Network: IP transport, TrFO • Acoustics requirements from GSMA / 3GPP, noise reduction
  3. 3. HD Voice is a worldwide reality Over 85 HD mobile networks • More than 60 countries source GSA: http://www.gsacom.com/hdvoice/ Over 200 device models • Generalized over smartphones Customer base: 100 millions (estimation eof 2013) One logo defined by GSMA • One recognized symbol for mobile (3GPP, 3GPP2) and fixed (CAT-iq). • Guaranteed quality  technical requirements (network and devices). • Supported by 45 companies http://www.gsma.com/futurecommunications/hdvoice.php
  4. 4. When aware, customer opinion is very positive  Sources – Orange France FUT (July 2010): 33 couples of testers (http://www.gsma.com/newsroom/ir-36-1-0-adaptive-multirate-wide-band ) – Orange Moldova Consumer survey (April 2011): 102 Orange Moldova HD customers – Orange Romania Consumer survey (Feb. 2012): 500 Orange Romania HD « aware » customers HD Voice customers are very satisfied by the service • Is HD call Quality better than before? Yes: 89% (France) • Are you satisfied with HD Voice? Yes 81% (No: 4%) (Romania) Aware customers expect HD Voice (France) • Is HD Voice - as tested - an evolution that you expect from your operator ? Yes 92% • Are you ready to change your mobile to benefit from HD Voice? Yes 76% HD Voice has a positive impact on brand and on loyalty • Since using HD Voice, your opinion of Orange network is Better 56% - Worse 2% • To what extent does HD encourage you to stay with Orange? Yes 73% - No 25%
  5. 5. HD voice boosts monthly usage Increased Voice Usage • Customers switching to a non HD Voice handset voice usage increase +2,8 % • Customers switching to a HD Voice handset (right) increase +5,6 %  gap of about +3% Observed in other European countries Spain : +3,8% Belgium : +4% Romania : +2,1% Moldova : +2,7% • Monthly voice usage (incoming and outgoing calls) of Orange France customers switching to a handset in early 2012. • Observed, 6 months prior to the switch and 6 months after the switch
  6. 6. • Today, to fully benefit from HD: be under 3G + call another HD customer of the same PLMN being too under 3G  Today, HD  10% of HD customer calls Stake: increase HD call occurrence Increase HD call occurence • Widen the HD Voice device portfolio • Extend to other networks (2G, VoLTE) • Connect « HD islands » through interoperability. HD call probability evolution - example Time Proba x 2
  7. 7. HD voice levers to be regionally adapted HD Voice device portfolio - Smartphone: generalized support in progress. - HD over feature phones is key for emergent markets. HD interoperability - The key factor - National / int’l interop • First HD connexions direct or by hubs • Made easier as standardized (SIP / SIP-i, AMR-WB) • Roadmap driven by IP to IP interco. Mobile sales (million units) Extension over 2G - HD call occurrence - Continuity when 3G / 2G handover • Depending on country network profiles • RAN evolution to IP interface with CN • Support over dual mode devices to generalize. source: Yankee Group
  8. 8. HD Voice over VoLTE • GSMA IR 92 (IMS Profile for Voice): AMR-WB. • Device requirements under definition by 3GPP R12 • HD logo for VoLTE to be considered at GSMA. • Device impact (jitter buffer, a-synchronism…) • Handover LTE to 3G (SRVCC) • VoLTE / 3G HD interop (benefit from installed basis) • AMR-WB @ 23.85 kbps (non speech signals, conf.) • Communication about HD Voice at VoLTE launch • Super HD thanks to EVS codec by 3GPP HD VoLTE already exists HD VoLTE is specified … and opportunities to exploit • First launches in Korea (SKT, LG U+, KT) • http://www.youtube.com/watch?v=3IeryI_DnMs Still some points to pay attention
  9. 9. As a conclusion, four wishes: • HD Voice support over feature phones • Bridges built between HD islands • A still magnified audio user experience in VoLTE • HD Voice logo commonly used and recognized http://www.voixhd.orange.com/fr/Accueil http://www.gsma.com/futurecommunications/hdvoice.php

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