1. NTG Wifi-Calling Client

2. Content Wifi-Calling Service Why Wifi-Calling
Challenges for Wifi-Calling
NTG VoWifi Client

3. Wifi-Calling Services
Wifi-Calling (VoWifi) is an operator-provided service that makes it possible for consumers to make regular phone calls and text messages from their SIM-based mobile phone number, even if they have poor cellular coverage, by utilizing a Wi- Fi network.
Wifi-Calling Standardization support Seamless handover for VoLTE calls between LTE and Wi-Fi and vice versa. Conversational video is also possible via Wi-Fi “ViLTE”.
Wifi-Calling offers the consumers seamless experience, they are reachable on their normal numbers and can place call using their native dialer and phone book.
Wifi-Calling utilizes IMS core to provide a packet voice service over Wifi coverage.

4. Benefits for Consumers
Why Wifi-Calling
Benefits for Consumers
Globally 70% of consumer are not satisfied with the indoor Voice quality, reliability & coverage.
Wifi Calling offers better indoor coverage.
Smartphone users send texts and make voice call indoor as twice than outdoor.
Coverage
Make benefit from VoLTE/IMS enriched services.
Place calls from all device even non-SIM based.
Use native clients with seamless experience compared to OTT Apps.
Offered Services
Consumer can use Wifi-Calling while travelling with cheaper rates.
MNO may offer cheaper for calls placed over consumer home wifi.
Cost

5. Why WiFi Calling?
Figure 1: Satisfaction with the indoor experience

6. Why WiFi Calling?
Figure 2: Why users find Wi-Fi calling appealing

7. Benefits for Operators
Why Wifi-Calling
Benefits for Operators
Better Coverage.
Enriched services.
User Loyalty
Better indoor coverage
Capacity offloading.
Make use of IMS based services over wifi.
Complementary service for VoLTE
Network performance
Roaming service over un-trusted Wifi
Competing with OTTs through standard native services.
Technology leadership
Cost effective solution compared to small cells.
New revenue Streams

8. Market Updates
Figure 3:   Mobile IP Voice Minutes of Use—VoWiFi, VoLTE, and VoIP
(Cisco)
More than 30 operators launched Wifi-Calling and many other are deploying.
Cisco forecast that Wifi minutes will dominate the IP Voice services by 2018.

9. Wifi Calling Challenges
Figure 4: Percentage of existing Wi-Fi calling users facing issues
service uptake and adoption is among challenges for VoWifi service Business Case the.
Terminals availability should be resolved to secure higher customer base.
Currently iOS8 and higher versions supports Wifi-Calling on iphone5C and higher.
On the Android front, only high end smartphones support the service through customizations.
NTG Wifi-Calling Client help operators to serve all their Android users.

10. NTG Wifi-Calling Client
NTG Wifi Calling Client work for all Android devices, accelerating the service uptake.
How Does it works:
An integrated client detects proper Wi-fi signals, and route all Telephony service over Wifi/IMS network.
Using subscriber credentials for secure registration & Authentication.
Uses native phone dialer, phonebook & messaging.
Work over any Wi-fi AP (untrusted + trusted).
Support SIM/Non-SIM devices.
Complementary to VoLTE, Supports SRVCC.
NTG Wifi Calling Client provides a seamless Voice & SMS user experience over Wifi networks.
Unlike over the top (OTT), the client maintains 3G networks Supplementary, enhanced & regulatory services, with single number

11. NTG Wifi-Calling Client
Reference:
Etisalat Misr Wifi-Calling Client for Android smartphones in Jul-16.
Successful PoC covering all basic features.
Awarded the contract for delivery and support Commercial client.
Interwork with E/// IMS & ePDG.
Uses EAP-TLS for user Authentication with ePDG/AAA
Wi-Fi Calling architecture

12. NTG Wifi-Calling Client: Sample Screens with Different Themes

13. NTG Wifi-Calling Client: Sample Screens with Different Themes

14. Thanks