2017 ROADMAP (EXTERNAL)

The information in this roadmap is confidential and proprietary to DingLi Communications and may not be copied and disclosed without the permission of DingLi Communications. Statements included in this roadmap is for informational purposes only, and readers are hereby cautioned that actual product development are all subject to change by DingLi Corp Ltd at any time for any reason without prior notice.

Contents 1 Pilot Fleet Unify 2 Pilot RCU & Scout Pilot Pioneer & Pioneer Expert 3 4 Pilot Walktour & WalktourPack

Pilot Fleet Unify Ver: 2.6 (Oct 2017) Ver: 2.7 (Feb 2018) Priority Import test route for drive test navigation Apply edited parameter threshold to real-time path monitoring, Custom Report and data analysis Customization of “Drive Test Data” events/parameters by request Pilot Scout 3.0 Record customized KPIs in database for faster query Customize real time events based on radio parameter for monitoring Improved Fleet Lite for real time monitoring Filter abnormal data (etc. small logfile, Invalid GPS) for report generation and data analysis Automatic e-mail distribution to inform abnormal FU operation Download test data and reply with Pilot Pioneer Medium High Low Status Released Launched Future

Contents 1 Pilot Fleet Unify 2 Pilot RCU & Scout Pilot Pioneer & Pioneer Expert 3 4 Pilot Walktour & WalktourPack

Pilot Scout 3.0 Ver: 14.1 (Aug 2017) Ver: 14.2 (Feb 2018) Ver: 14.3 (May 2018) Priority Medium High Low Cascade Pilot Scout for multi devices test WiFi connection Modem sharing 4 channels POLQA test 2 test modules plus 2 external handsets (Connect iPhone 6s , Samsung S7 and Samsung S8 for testing. ) NB-IoT test with Pilot Scout + Pilot Watcher Pilot Scout2.1 Pilot Scout3.0 License information display on FU web Remote License management (etc. license renewal) WebClient to remote configure and monitor Pilot Scout Internal USB3.0 and build-in WiFi module (optional) 4G LTE CA 2CC/3CC Nano SIM card (only) Status Released Launched Future

Pilot RCU 2.1 Ver: 13.1 (Feb 2018) Ver: 13.2 (May 2018) Upgrade device firmware, kernel and file system on FU web client Upgrade test plan files as *.xml format WebClient to remote configure and monitor Pilot RCU unit Connect iPhone 6s, Samsung S7, Samsung S8 for testing 4G LTE CA 3CCs Cascade Pilot RCU for multi devices test License information display on FU web Remote License management (etc. License renewal) Status Released Launched Future

Contents 1 Pilot Fleet Unify 2 Pilot RCU & Scout Pilot Pioneer & Pioneer Expert 3 4 Pilot Walktour & WalktourPack

Pilot Pioneer Ver: 10.1 (Oct 2017) Ver: 10.2 (Feb 2018) Ver: 10.3 (May 2018) Priority Medium High Low Support DCF file format * Custom analysis ** Private server for HTTP Upload test * New terminals(Huawei Mate8/HTC10) *** VoLTE test with iPhone *** Single site verification *** Support test box integrated with RCU/Scout module *** mLAB vMOS video evaluation based on Huawei algorithm *** KPI statistics interface * NB-IoT device test (Qualcomm engineering mode device ) *** CA downlink 3CC, uplink 2CC test (etc. Samsung S8) *** New terminals support *** e.g. Samsung S8 – CA 3CC/4x4 MIMO/256QAM Download and replay test data from Pilot Fleet Unify Configure Pilot Walktour test plan * Data service intelligent analysis ** Configure test plan start/end range * 3 channels POLQA measurement (6 handsets) * LTE 4.5G support (etc. 265QAM, 4CA) *** * Pilot Pioneer ** Pilot Pioneer Expert *** Pilot Pioneer & Pilot Pioneer Expert Note: 1. The supported Samsung S8 model for both Pioneer and Android Walktour is Samsung S8 SM-G9500 (China & Hongkong version). However, for international customer, we need to know local 3CC CA bands first and then install dedicated configuration on the phone. 2. America version of Samsung S8 which uses Qualcomm chipset as well is possible to support with Pioneer and Walktour, including Samsung S8 SM-G950A, SM-G950P, SM-G950V,SM-G950T,SM-G950U. The most important is above phone should be sent to Zhuhai for developing before delivery it to customer. Status Released Launched Future

Contents 1 Pilot Fleet Unify 2 Pilot RCU & Scout Pilot Pioneer & Pioneer Expert 3 4 Pilot Walktour & Pilot Walktour Pack

Pilot Walktour Android Ver: 3.6 (Jul 2017) Ver: 3.7 (Dec 2017) Ver: 3.8 (Mar 2018) Priority Medium High Low LTE data service exception Analysis VoLTE intelligent analysis Encrypt test logfiles High-speed rail test with Android Subway test with Android CA downlink 3CC, uplink 2CC New terminals support (Samsung S7/HTC10, etc.) LTE data service exception Analysis VoLTE intelligent analysis Encrypt test logfiles High-speed rail test with Android Subway test with Android CA downlink 3CC, uplink 2CC New terminals support (Samsung S7/HTC10, etc.) Single site verification test App test VoWiFi test New terminals ( Samsung S8、Mate9, etc.) Single site verification test NB-IOT device test with external Qualcomm module App test VoWiFi test New terminals (etc. Samsung S8) Enhanced TCPIP capture files analysis New Indoor test solution in cooperation with Inns vtMOS ViLTE quality evaluation based on Huawei algorithm NB-IOT device test Note: 1. The supported Samsung S8 model for both Pioneer and Android Walktour is Samsung S8 SM-G9500 (China & Hongkong version). However, for international customer, we need to know local 3CC CA bands first and then install dedicated configuration on the phone. 2. America version of Samsung S8 which uses Qualcomm chipset as well is possible to support with Pioneer and Walktour, including Samsung S8 SM-G950A, SM-G950P, SM-G950V,SM-G950T,SM-G950U. The most important is above phone should be sent to Zhuhai for developing before delivery it to customer. Status Released Launched Future

Pilot Walktour iOS Ver: 4.0 (Jul 2017) Ver: 4.1 (Nov 2017) Ver: 4.2 (Mar 2018) Priority Medium High Low LTE data exception analysis VoLTE intelligent analysis Automatic pinpointing and positioning for indoor test High-speed rail test with iPhone Subway test with iPhone VoLTE test (for non-encrypted network) New system iOS10 New terminal support Single site verification Customize statistics and information display New terminal support Note: iPhone is only supported with iOS version 10.3 or below, as that’s the current version that can be jailbroken Status Released Launched Future

Ver: 3.5 (Jul 2017) Ver: 3.6 (Dec 2017) Ver: 3.7 (Mar 2018) Pilot Walktour Pack Ver: 3.5 (Jul 2017) Ver: 3.6 (Dec 2017) Ver: 3.7 (Mar 2018) Priority Medium High Low Pilot Walktour Pack installed in non-jailbreak iPad Supports external USB GPS Pilot Walktour Pack test box integrated with GPS solutions CA test High-speed rail test Subway test MOS test with a new sling backpack (2 handsets) New system iOS10 Control Pilot Walktour pack test plan with Pilot Pioneer(10.2 and later version ) Enhanced indoor positioning with additional positioning hardware Status Released Launched Future