Mobile HD Voice January 6 th, 2010 Mahesh Makhijani

2 Unprecedented Mobile Voice Quality On Current 3G Networks & Beyond Leverages technologies commercially available today No 4G/LTE Needed Advanced Noise Cancellation Qualcomm’s advanced noise cancellation technology Wideband Vocoder Superior voice quality compared to today’s narrow band vocoders 4GV TM -WB (EVRC-WB) + Fluence TM

3 4GV TM -WB Offers Higher Quality Voice without Capacity Impact Capacity Quality 4GV TM -WB (EVRC-WB) 4GV TM -B (EVRC-B) Higher Quality at same capacity as today’s EVRC Higher voice quality with no impact on capacity  Enhances both VoIP and Circuit Switched (CS) voice quality  Supported in select Qualcomm MSM chipsets EVRC

4 Fluence TM – Qualcomm’s Advanced Noise Cancelling Technology Primary Microphone Secondary Microphone Speaker Incremental software only upgrade  Superior noise reduction without impacting speech quality  Accurately identifies noise by employing secondary microphone  Commercially available in select phones

5 HD VoIP is the Natural Choice when Migrating to All-IP 3G Network WB VoIP WB – Wideband NB – Narrowband IMS for VoIP PSTN Fixed Migration to IP WB VoIP Terminal Fixed Phone Higher voice quality with no impact on capacity  End-to-end VoIP enables HD voice NB IP

6 Mobile to Mobile HD CS Voice is Possible WB CS voice WB – Wideband NB – Narrowband PSTN Fixed Phone NB WB CS voice WB 3G Network NB CS voice 3G Network TrFO Function 3G Network TrFO - Transcoder Free Operation PCM - CS based transport network PCM/PSTN Higher voice quality with no impact on capacity  End-to-end HD CS voice has to bypass PSTN and PCM

7 HD Voice Demo Configuration At CES-2010 HD VoIP Phone (VoIP+4GV TM -WB+ Fluence TM ) Fixed IP HD VoIP Phone (with WB codec G.722) Qualcomm CES Conference Room CES Booth OTA Network QRC San Diego 4GV TM -WB G.722 Transcoder EV-DO Rev. A/B PDSN Internet Asterisk/ MGW Internet

8 Leverages technologies available today - 4GV TM - Wideband vocoder and Fluence TM noise cancellation HD Voice Ability to differentiate voice service to high-value customers Unprecedented mobile voice quality

9 Speech Codecs Landscape Fragmented and mostly driven by fixed network service providers Wireless Wireline 64kbps 4kbps 8kbps16kbps32kbps G.711 G.726 G.728 G.729 G G G.728 AMR HR EFR AMR-WB QC8 QC13 EVRC EVRC-B EVRC-WB BV16 BV32 RT-Audio SILK RNA-10 G.723 ITU-T 3GPP 3GPP2 Proprietary ISAC-WB iLBC G.722 SVOPC WMA-WB IP-MR Speex