Mobile HD voice: Global Update reportMay 3, 2016This report by GSA gives a status summaryof mobile HD voice operator commitments &service deployments and launches globallyon 2G/GSM, 3G/HSPA & 4G/LTE networks(i.e. VoLTE) & the maturing W-AMR enabledmobile HD voice user devices ecosystemIntroductionMobile HD voice based on Adaptive MultiRate Wideband (W-AMR) technologyenables high-quality voice calls in mobilenetworks and an improved user experience.It provides significantly higher voice qualityfor calls between mobile phones supportingthe feature and is deployed in GSM, UMTS(WCDMA-HSPA) and LTE networks aroundthe world. The higher voice quality using HDvoice improves the call experience, allowingpeople to better share feelings, do businessand communicate information. HD voicetransmits a broader spectrum of the humanvoice; therefore conversation is more naturaland is likened to speaking to the other partyin the same room. HD voice also helpspeople hear better in noisy environments.HD voice helps operators to differentiatetheir offerings and enable high qualityservices e.g. voice dependent business likecall centres, information and emergencyservices, etc. HD voice is ideal forconference calls and can contribute to areduction in business travel and raiseproductivity while reducing environmentalimpact. Calls that are easier to hear andunderstand reduce the fatigue oftenassociated with long conference calls. HDvoice represents the greatest advance invoice on mobile networks in decades.bandwidth (50–7000 Hz) compared to the current narrowband speechcodec (300–3400 Hz) without extra radio or transmissionrequirements. According to 3GPP, 12.65 kbit/s or higher coding bitrates provide high-quality wideband audio (lower bit-rates of 8.85 and6.6 kbit/s are for temporary use during adverse radio conditions orperiods of cell congestion). In subjective tests the HD voice widebandcodec produces better results than the best narrow-band codec.164 mobile operators commercially launched HDvoice service in 88 countries130 on 3G/HSPA networks17 on 2G/GSM networks63 on LTE networks (VoLTE)Note - some operators offer HD voice on more than one radio systemHD voice service is commercially launched in Afghanistan, Albania, Armenia,Australia, Austria, Bahrain, Bangladesh, Belarus, Belgium, Bulgaria, Cambodia,Canada, China, Croatia, Czech Republic, Denmark, Dominican Republic, Egypt,Estonia, Finland, France, Gabon, Germany, Greece, Hong Kong, Hungary, India,Indonesia, Ireland, Israel, Italy, Ivory Coast, Japan, Jordan, Kazakhstan, Kenya,Kuwait, Kyrgyzstan, Latvia, Liechtenstein, Lithuania, Luxembourg, Malawi,Malaysia, Mali, Malta, Mauritius, Moldova, Mongolia, Montenegro, Morocco,Myanmar, Netherlands, New Zealand, Nigeria, Norway, Oman, Philippines, Poland,Portugal, Qatar, Réunion, Romania, Russia, Rwanda, Saudi Arabia, Senegal,Serbia, Singapore, Slovakia, Slovenia, South Africa, South Korea, Spain, SriLanka, Sweden, Switzerland, Taiwan, Tajikistan, Tanzania, Thailand, Turkey, UAE,Uganda, UK, Ukraine, USA, UzbekistanSeveral countries have competing mobile HD voice operators. Interconnectionbetween these networks for end-to-end HD voice calling is a priority and inprogress (launched in South Korea) as well as provision for handling internationalHD voice calls, and for HD voice calling between fixed & mobile networks.The maximum benefits from using HD voice are realized when bothcalling and called party use HD voice phones on a compatible mobilenetwork. Improvements in call quality are also observed even whenusing an HD voice phone to call a non-HD voice phone, due toimprovements in the acoustic performance and advanced noisereduction capabilities of most HD voice phones. There is a strongbusiness case for Mobile HD voice:Ecosystem- ‐userdevices 370 VoLTE-capable devices (with carrier and frequencyvariants) including 342 smartphones are announced (GSA)USA AT&T announced 27 million VoLTE customers (Q4 2015)Orange France studies confirmed:W-AMR speech technology is standardizedin 3GPP Release 5. The W-AMR speechcompression algorithm doubles rswouldbepreparedtochangemobilestoobtainHDVoice

Mobile HD voice: Global Update reportMay 3, 2016Network aspectsThe voice payload for transport in the corenetwork is usually PCM-coded at 64 kbit/s(ITU-T Rec. G.711). Narrowband AMR istranscoded to/from PCM but degrades voicequality, adding signal processing complexity.63 operators have commercially launchedVoLTE HD voice service in 35 countriesAnalog PCM-based transport cannot beused with W-AMR as G.711 only applies tonarrowband voice. W-AMR must be basedon one of two complementary 3GPPstandards: tandem-free operation (TFO) ortranscoder-free operation (TrFO).Many operators provide demonstrations of mobile network HD voicequality on their websites for customers to compare with standardmobile voice quality.Introduction of W-AMR into GSM systemsrequires TFO, which is part of 3GPPGERAN, which does not require substantialmodification of the core network. W-AMRand TFO can also be introduced into UMTS.Hear HD Voice!A better option is to use the recommendedTrFO. The combination of TFO and TrFOenables W-AMR calls between all types of3GPP mobile devices (i.e. GSM/EDGE andUMTS/WCDMA-HSPA).Most HD voice devices operate on3G/HSPA networks, with some working onGSM networks. Many new models aredelivered with HD Voice activated as default.A number of operators are now deployingHD voice capability on their 2G/GSMnetworks for which compatible phones arecommercially available.See the table on the following pagesThe link below references one of the earliest demonstrations and hasbeen listed to by over 89,000 visitors.Martin Stanford (Sky News presenter) bwVPkt6vwEw&feature player embeddedSince October 2012, Orange customers in Romania and Moldova canmake HD voice calls between these countries. Orange supportsinternational HD voice calls between two operators on fixed and/or anymobile network and launched an international HD voice call exchangerdfor 3 party operators and service providers. In South Korea, MinisterYang Hee Choi announced on 23 November 2015 VoLTE callinginterconnection activation between all three mobile network operators.Many other operators and nations are seeking interoperability for HDvoice users as quickly as possible. Other IPX providers include Aicent,BICS, BT, iBasis, TI Sparkle, TSIC, and Tata Communications.The HD voice logo is designed foroperators and vendors to market andpromote interoperable HD voice capabilitieson their networks and end user products.Details about the logo, how to become alicensee, contacts etc., are available on theAvailable on the GSMA (GSM Association)A growing number of LTE user devicesincorporate W-AMR technology today andseveral LTE operators are deploying VoLTEwith HD voice as the first service offer asconfirmed in this report.Note that with HD voice capable terminalssome are operator specific and notcompatible for use in other networks oravailable in all markets. This information inthis report is for interest/guidance only forreaders. Availability of the W-AMR feature inany device for a specific market must alwaysbe checked directly with the phonemanufacturer d-voice/join-the-momentumaround-hd-voice/Since June 12, 2013 DECT Cat-iq 2.0 certified devices may also use this logo.HD Voice (W-AMR) discussion &gid 3032759To continue the market development, GSAadvocates that all smartphones should bedelivered with W-AMR activated by default.2

Mobile HD voice: Global Update reportMay 3, 2016OPERATOROrange MoldovaOrange France (VoLTE launched 25.01.16)Orange ArmeniaOrange UKSFROrange Spain (Catalonia region)MobistarVipnetTata DoCoMoMobinilMegafon (initially HSPA, with GSM from 27.04.2011)Orange LuxembourgCSL LimitedTurkcell (VoLTE launched 01.04.16)TIM (VoLTE launched 21.12.15)WIND MobileVodafone Turkey (VoLTE launched 01.04.16)Orange MauritiusOrange RéunionOrange Romania (VoLTE launched 14.09.15)3 UK (VoLTE launched 15.09.15)Orange DominicanaDuM-TELTelstra (VoLTE in 2015)Orange UgandaT-Mobile PolandOrange KenyaT-Mobile AustriaMobitelVIP SerbiaOrange SwitzerlandT-Hrvatski TelekomTDCA1 Telekom (VoLTE launched 30.11.15)T-Mobile CZDT (VoLTE launched 11.01.16)3 AustriaSi.mobilBell Mobility (VoLTE launched in February 2016)Swisscom (VoLTE launched 24.06.15) 2G in 2015Dialog AxiataKPNCelcom AxiataVodafone IrelandKcellPlay (P4)T-Mobile UKSK TelecomLG U PlusOrange JordanMTSTelusMeoRogers WirelessHSPAnetworkR R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R GSMnetworkLTE networkR R R R R R R R R R R R PlannedR R R R R R R R R R R R R R R oatiaIndiaEgyptRussiaLuxembourgHong aUKDominican ech RepublicGermanyAustriaSloveniaCanadaSwitzerlandSri outh KoreaSouth KoreaJordanRussiaCanadaPortugalCanadaHD voice servicest1 launch 9.201210.2012

Mobile HD voice: Global Update reportMay 3, 2016KTSmartBouygues Telecom (VoLTE launched 25.11.15)DTAC (VoLTE launched 15.10.15)Ooredoo3 DenmarkAirtelOrange (Partner)T-Mobile US (HSPA first, VoLTE launched 22.05.14)Axis - AxiataDNA (VoLTE launched 14.03.16)Chunghwa TelecomOrange CIAirtelAirtelAirtelStarHub (HSPA first, VoLTE launched 28.06.14)Telenor (VoLTE launched 20.01.16)G-MobileMobilySTCNetcomCosmoteAIS (VoLTE launched 25.03.16)Orange SlovakiaCosmoteCmogorski TelekomVodafone (VoLTE launched December 2015)Magyar TelekomVodafoneBiteBiteKyivstarTelenorTelenor SerbiaVodafoneMTSVivaOrange2 DegreesOrange SonatelTeliaSoneraTelefonica O2 (VoLTE launched April 2015)NawrasInwiTele2VivaZainEMT3 HKAltelEtisalatAT&T MobilityT-MobileSingTelNTT DoCoMoBeeline (VoLTE launched 12.08.15)R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R 4R R R South sraelUSAIndonesiaFinlandTaiwanIvory CoastKenyaMalawiRwandaSingaporeNorwayMongoliaSaudi ArabiaSaudi arySerbiaNew ZealandBelarusKuwaitMaliNew nBahrainEstoniaHong KongKazakhstanSri 201329.08.201316.09.201307.11.201311.12 423.05.201427.05.1431.05.201406.201416.06.2014

Mobile HD voice: Global Update reportMay 3, 2016Robi AxiataVodafoneOrangeSmartoneAMCOoredooMTNTelenor (VoLTE launched 30.11.15)VodafoneVerizon omtel / mSlovak TelekomAmbit TELTaiwan Star MobileChina MobileChina Mobile Hong KongVodafoneVodafoneGabon TelecomSmileEvolve Broadband (date estimated)KPU TelecommunicationsTaiwan MobileTele2SmartfrenSmileSmileVodafoneTele2China Unicom (VoLTE launched March 2016)EETurk TelecomTotal 164 HD voice operators (enabled by W-AMR)Excludes MVNOs, Trunked Radio SystemsR R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R 130 on3G/HSPAnetworks17 onGSMnetworks563 VoLTEon LTEnetworksBangladeshNetherlandsPolandHong KongAlbaniaMyanmarSouth yzstanMaltaSingaporeSouth ItalyAustraliaCambodiaTaiwanChinaHong KongPortugalCzech riaTanzaniaQatarNetherlandsChinaUKTurkey88 01412.12.201422.12.201425.12.20142014 3.1629.03.1603.201603.201601.04.16

Mobile HD voice: Global Update reportMay 3, 2016HD voice (W-AMR) on LTE networks (VoLTE)LTE systems are all-IP, optimized for data transfer. LTE does not include any circuit switched capability as used on previoustechnologies for voice and SMS services. Since voice and SMS generate in the region of 60-70% of operator revenuesglobally, voice service is needed on LTE networks and is a priority for many LTE operators as network coverage improved(increasingly nationwide) and as penetration and usage of LTE smartphones increased. In the first phase of voice evolution,voice calls are handled in a circuit switched network using CSFB (circuit switched fall back). The LTE data connection “fallsback” to a legacy 2G/3G voice network connection prior to initiation of a voice call. This solution was favoured by many LTEoperators initially, with VoLTE as the goal. Some LTE operators launched voice service with VoLTE in one step. With theVoLTE solution (GSMA spec. VoLTE IR.92, based on 3GPP standards), subscribers are able to use HD voice and other richercommunication services using LTE smartphones. An operator needs an IMS (IP Multimedia System) core network and the LTEradio access network and Evolved Packet Core must also support VoLTE (usually achieved by software upgrade).Also see SNAPSHOT: VoLTE Global Status available for free download at www.gsacom.comHD voice service launches (W-AMR on GSM, WCDMA-HSPA orLTE networks) 2009 – 2016Source: GSA reportsHD VOICE DEVICES ECOSYSTEM: 2G/GSM, 3G/HSPA and 4G/LTE - VoLTEHD voice compatible user devices incorporating W-AMR are mainstream. Several hundred products have been launched inthe market by the leading smartphone brands and others, especially for use on 3G/HSPA networks, and increasingly for useon 4G/LTE systems. Some suppliers also support the 2G/GSM HD voice market. The ecosystem for HD voice compatibleVoLTE terminals for use on 4G/LTE networks is developing fast. GSA monitors and regularly reports on its progress andprovides product details in GSA’s GAMBoD user devices database. Initially operators deployed VoLTE for delivering HD voiceservice for LTE users. As stated in GSA’s Status of the LTE Ecosystem report published on April 7, 2016 a total of 370 VoLTEcapable devices (counting carrier and frequency variants) including 342 smartphones are announced across all price points.For more details about all LTE user devices download the Status of the LTE Ecosystem report from www.gsacom.comABOUT GSAGSA (Global mobile Suppliers Association) represents GSM/EDGE/WCDMA-HSPA/HSPA , LTE/LTE-Advanced, LTEAdvanced Pro and future 5G suppliers. GSA brings together a global industry community of telecoms professionals through itswebsite, reports, information papers and practical activities to inform, influence, educate, explain and promote the opportunitiesenabled by mobile broadband systems. The GSA website has over 70,000 registered users for knowledgegathering and information sharing of key facts, trends and analysis, and over 26,000 connections on our social networkplatforms - LinkedIn, Twitter and Facebook. Over 1 million GSA reports, presentations, information papers, maps, charts andother resources were downloaded from in under five years. Register for free downloads of reports,information papers, maps, charts, etc. at http://www.gsacom.comErrors and Omissions ExceptedUpdates for this report are welcome to [email protected]

HD voice calls, and for HD voice calling between fixed & mobile networks. The maximum benefits from using HD voice are realized when both calling and called party use HD voice phones on a compatible mobile network. Improvements in call quality are also observed even when using an HD voice phone to call a non-HD voice phone, due to