VoLTE is a standard for high-speed voice calls over 4G LTE networks that provides higher voice capacity and frees up bandwidth compared to 3G and 2G networks. VoLTE calls are recognized as the future of mobile voice services. It provides more efficient spectrum use, meets rising demand for rich services, eliminates separate networks for voice and data, and increases revenue potential through IMS. VoLTE also improves battery life, call quality, and call setup times. Early commercial VoLTE services began launching in 2014, with full commercial launches following in various countries through 2016.

1. Submitted by
ANOOP.B
INTC1517511

3.  Voice over Long-Term Evolution (Vo LTE) is a standard
for high-speed wireless communication for mobile
phones and data terminals.
 This would lead to fragmentation and incompatibility not
allowing all phones to communicate with each o
 VoLTE has up to three times more voice and data
capacity than 3G UMTS and up to six times more than
2G GSM. Furthermore, it frees up bandwidth and this
would reduce voice traffic.
 Voice calls over LTE are recognised as the industry-
agreed progression of voice services across mobile
networks, deploying LTE radio access technology.

4.  Provides a more efficient use of spectrum than
traditional voice;
 Meets the rising demand for richer, more reliable
services;
 Eliminates the need to have voice on one network
and data on another;
 Unlocks new revenue potential, utilizing IMS as the
common service platform;
 Can be deployed in parallel with video calls over
LTE and RCS multimedia services, including video
share, multimedia messaging, chat and file transfer;

5.  Ensures that video services are fully interoperable
across the operator community, just as voice
services are, as demand for video calls grows;
 Increases handset battery life by 40 per cent
(compared with VoIP);
 Delivers an unusually clear calling experience; and
 Provides rapid call establishment time.

6. Function and Explanation of Features
Voice Services
 Differentiated Vo LTE services: meter voice and data
separately to create differentiated service plans; enable
flexible Q o S to support regional, subscriber or device-
specific policies
HD Voice
 Emergency Services and Location Information
 Allow IMS emergency call priority and data plan override;
 Ensure access to reliable emergency call support; network
provided subscriber location information (NPLI)

7. Vo LTE Roaming
 • Global roaming coverage for Vo LTE services with guaranteed
Qo S
 • Local breakout support: supplying policy rules and charging
parameters to outbound / inbound roamers with guaranteed Vo
LTE
 Q o S
 • Identify subscriber location and apply appropriate Q o S /
charging parameters
Scalability and Reliability
 Support for the always-on nature of the Vo LTE dedicated bearer
and increased number of concurrent voice sessions
 Handle the ten-fold increase in diameter signaling generated by
Vo LTE call flows
 Manage increased performance requirements as more Vo LTE
services and devices are on-boarded
 Reduce signaling with policy decision point capability in the data
plane
 Circuit-switched fall back (CSFB) in case the LTE network is not
available

8.  In May 2014, Singtel introduced the world's first commercial "full-
featured" VoLTE service in Singapore, only in combination with
the Galaxy Note 3, it was subsequently expanded to the
Samsung Galaxy S6 series, iPhone 6s, LG G4 and Sony Xperia
Z3+ Sony Xperia Z5 Premium.
 In June 2014, KT showcased the world’s first cross-border
roaming services based on Voice over LTE. The South Korean
operator partnered with China Mobile to develop VoLTE roaming
services.
 In October 2014, operators based on IMS local breakout
architecture with home routing systems.

9.  On 11 July 2015, SEATEL Cambodia announced the
world's first commercial 100% Vo LTE service without
2G/3G in Cambodia.
 On 16 September 2015, Telstra announced that it had
started enabling Vo LTE across its network, including
calling to National Broadband Network and business
and enterprise services with HD handsets.
 On June 30, 2016, YTL's YES launches 4G LTE service
to become Malaysia's FIRST VoLTE service provider.
 Reliance Jio announced commercial launch of 100%
VoLTE service without 2G/3G based services in India on
5th Sep 2016.
 In October 2016, Orange Polska launched commercial
VoLTE service in Poland.

10. THE VOICE CHALLENGE FOR
LTE

11. CONCLUSION

12. THANK YOU..