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Copyright © 2016, Oracle and/or its affiliates. All rights reserved. |

Leveraging Wi-Fi Calling To Reduced Operator Costs and Improve the Customer Experience Steve Northridge Email: [email protected] Twitter: @stevenorthridge


Mobile Coverage Impacts Customer Experience

80% Mobile calls occur indoors

74% Willing to switch operators for better

coverage at the home and office

61% IT decision maker indicate their business did

not have reliable coverage

Source: “Study: Poor Cell Coverage at Work May Impact Wireless Churn Rates”, Andrew Burger, January, 20, 2015, Telecompetitor.com

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“ Can you hear me now? “

Bad Experiences Lead to Customer Churn

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• 80% of dropped call issues originate in RAN; capacity and indoor coverage issues have a real customer impact

• A single dropped session can mean the difference between unhappy customers and churn

• Need to keep CapEx/Opex in line with revenue

Mobile Operator Challenges

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Indoor Coverage

• Indoor mobile traffic is growing 20% faster than outdoor traffic1

• Modern building with reinforced concrete and high efficiency window limit indoor coverage

• Bad cell phone coverage in a hotel prevents 54% of adults from returning2

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Structures limit coverage

Source:1“Amdocs 2015 State of the RAN”, January 2015 2“Wireless Technology Trends and Their Impact on the Hospitality Industry”, August 5, 2014, HetNetForum returning


Adding Towers and Spectrum is an Expensive Solution

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• Average cost to build a cell tower $150,0001

Time to deployment impacted by community approvals

• United States FCC spectrum auction in January 2015 $45B

1 “Cell Phone Tower Statistics”, Statistic Brain Institute, March 17, 2015


Wi-Fi is Cheap and is Everywhere

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$0 to $100’s Wi-Fi Access Points are cheap

and free if leveraging customer access point


ePDG, AAA GAN Controller

Didn’t We Try Calling over Wi-Fi Before? What’s New?

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UMA Wi-Fi Calling

2G/3G <- -> Wi-Fi LTE <- -> Wi-Fi

UMA Device Embedded

VoLTE/VoWi-Fi client

UMA I-WLAN

2011 2015

Device

handovers

Service RCS

UMA

• Handset support Required

• Architecture complex and expensive

• Handovers did not work and feature dropped

Wi-Fi Calling

• Device support required

• Leverages EPC and IMS

• Handovers work like LTE Macro Cell handover


Device Support is the Stumbling Block

Why Now?

What’s Changed?

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Device Support is the Stumbling Block

Why Now?

What’s Changed?

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Game Changer – Wi-Fi Calling ready For Mass Market

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What is Wi-Fi Calling?

Delivers MNOs voice & messaging over Wi-Fi • Wi-Fi Calling lets you make calls and send texts

over the internet…

– With your mobile number

– Using the native dialer to make calls

• Call continuity between VoLTE and Wi-Fi

• Utilizing device capabilities rather than at application level resulting in significantly lower battery consumption

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Wi-Fi Calling Solves Indoor Coverage Problem At a much lower cost

Customer satisfaction: - Enhanced Indoor Coverage

- Roaming as local call (charging)

Cost savings: - Reduce costs to improve

coverage

- Re-use VoLTE IMS, only add ePDG and AAA

Cable or ISP - Voice as a multi-play option

- Wi-Fi first

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CSP’s Views on Wi-Fi Calling

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0

10

20

30

40

50

60

70

80

90

100

2015 2016 2017 2018 2019 2020

% o

f o

per

ato

rs

MNO MSO

5%

20%

15%

16%

14%

11%

9%

10% WiFi-first

Reduce churn

Reduce TCO

Fill VoLTE gaps

Improved indoor coverage

Attract enterprise users

Add premium services

Defence against OTT

Percentage of MNOs and MSOs with plans to deploy WiFi Calling services

Among MNOs planning to deploy WiFi Calling, the primary business driver to do so.

Source: Rethink Technology Research survey of 62 MNOs August 2015



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0

10

20

30

40

50

60

70

80

90

100

2015 2016 2017 2018 2019 2020

% o

f o

per

ato

rs

MNO MSO

5%

20%

15%

16%

14%

11%

9%

10% WiFi-first

Reduce churn

Reduce TCO

Fill VoLTE gaps




Defence against OTT




By 2020 70% of MSOs and over 85% of MNOs plan to deploy Wi-Fi Calling



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0

10

20

30

40

50

60

70

80

90

100

2015 2016 2017 2018 2019 2020

% o

f o

per

ato

rs

MNO MSO

5%

20%

15%

16%

14%

11%

9%

10% WiFi-first

Reduce churn

Reduce TCO

Fill VoLTE gaps




Defence against OTT




Addressing coverage issues is the number 1 reason for deploying Wi-Fi Calling



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0

10

20

30

40

50

60

70

80

90

100

2015 2016 2017 2018 2019 2020

% o

f o

per

ato

rs

MNO MSO

5%

20%

15%

16%

14%

11%

9%

10% WiFi-first

Reduce churn

Reduce TCO

Fill VoLTE gaps




Defence against OTT




Survey of 62 MNOs – 5% “Wi-Fi First” may be much higher amoung MSOs


Operators Are Recognizing Value Of Wi-Fi Calling

GSMA Score Card May 31, 2016

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Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | 21

The PGW is the anchor point, unlike SRVCC where the anchor point is the ATCF/ATGW

Wi-Fi Calling support in the EPC network and IMS ..

LTE

WiFi

SGW PGW IMS Core

VoLTE/VoWiFi Circuit

Switched

LTE RAN

WiFi RAN

ePDG

ePDG terminating IPSec and connecting with PGW via GTP tunnel

2 Secure IPSec Tunnel going through ANY

WiFi Network

1

IMS with support for VoWiFi and VoLTE, connecting to PSTN

3


Wi-Fi Calling only acts on the IMS APN, the Internet APN remains unaffected

..but Internet traffic routing is unaffected

LTE

WiFi

SGW IMS Core

VoLTE/VoWiFi Circuit

Switched

LTE RAN

WiFi RAN

Local Break-out at the WiFi Network

3

Internet Traffic over ANY WiFi Network

2

Internet

PGW


Without VoLTE and LTE

• Address Indoor Coverage Issues

• Provide a mobile network experience with the native dialer and same mobile number

With VoLTE & Without LTE



• Introduce VoLTE services over Wi-Fi to create stickiness upon LTE roll out

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With VoLTE & LTE



• Seamless handoff between LTE and Wi-Fi

Wi-Fi Calling Does Not Require VoLTE or LTE


Wait a Minute … Expose the Mobile Core to Wi-Fi?

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Man-in-the-Middle

Session Hacking

Eavesdropping

Denial of Service

Unauthorized Access


Wi-Fi and Internet Network Threats

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Internet/

IP network

Tunnel

Mobile Core

DoS attacks

Unauthorized

access & service theft Subscriber identity

theft & interception

Wi-Fi and the Internet are not on-par with LTE networks (untrusted, unmanaged):

• Threats include: eavesdropping (‘data’ in he clear), service theft, unauthorized access, DDOS, etc

• Access Points and end-point often in insecure locations and subject to hacking and tampering

• LTE/EPC is a controlled or managed environment, EPC nodes typically do not face these threats

Eavesdropping


With Oracle Communications Mobile Security Gateway

Secure Access over Wi-Fi and Internet

Internet/

IP network

Secure Tunnel

Mobile Core

DoS Protection

Overload Protection

Authentication

Authorization

Secure

Leverage Wi-Fi and internet access to provide secure 3GPP-level access to the network

• Authenticate and Authorize Users

• Protect against attacks and overload


Wi-Fi Calling ePDG

• Stand-alone ePDG deployment aligns with the Serving Gateway (SGW) / Packet Gateway (PGW) architectural model

• Better performance, scalability and deployment flexibility: a stand-alone ePDG supports higher number of IPSec tunnels, local ePDG selection while maintaining assigned PGW and scale as you grow.

• Flexibility to address new Wi-Fi Calling requirements • Need for security: the ePDG sits on the access edge and protects against attacks and threats

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Oracle Communications Mobile Security Gateway: Stand-Alone ePDG

WiFi RAN

LTE

WiFi

SGW PGW IMS Core

VoLTE/VoWiFi LTE RAN

ePDG


ePDG Architecture Preferences

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48%

28%

24%

Dedicated Integrated with PGW Undecided

MNO intentions to deploy dedicated or integrated ePDG for WiFi Calling and IP services.

Source: Rethink survey of MNOs evaluating IP plans for 2016-2018, September 2015

48% of surveyed MNOs intended to deploy a dedicated ePDG


Wi-Fi Calling Success in the Market Place with Oracle

• Launched March 21, 2016 alongside TU Go Service

• 80K new subscribers between March 21st and April 1st

• A lot of repercussions in very important national and tech media, and also on social media

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TU Go Brazil - Telco in Latam

- Country in Telefonica


Oracle Communications Mobile Security Gateway (MSG)

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Providing Secure Access Over Untrusted Networks

The delivery of voice and data services across non-3GPP networks

• Wi-Fi Calling

• Wi-Fi Offload

• Small Cells: Femtocells

Mobile Core Data 3G LTE

Voice 3G

VoIP VoLTE

Small Cell Wi-Fi Offload

Internet

Wi-Fi Calling


SIP

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Oracle Communications’ Wi-Fi Calling Related Components

MAP SIP/RTP

IPSec

SMS-C

IN / SCP

SIP

ISUP

PSTN

G-MSC

STP

CAP

RTP

RA

DIU

S

Native Client

A-S

BC

SIP

ACCESS SECURITY

MGW

MGCF

VoLTE TAS

MRF

MRFC SeG

W/e

PD

G

DNS

CLIENT

AAA

CORE SWx (Diameter)

Cx

I/S-CSCF

Sh

P-G

W

HSS


Wi-Fi Calling Summary

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• Improve Customer Experience

• Decrease Churn

• Mitigate Marco RAN investments

Improve Indoor Voice Coverage

• Leverage EPC and IMS investments

• Create stickiness for VoLTE when LTE Rolls Out

Introduce VoLTE Services Prior to LTE Roll-Out

• Video Calling, Wi-Fi First MVNO, Wireline Substitution

• Extend Service Out-of-Market over Wi-Fi

• Regain Mindshare with Customers

Enable Service Innovation


Safe Harbor Statement

The preceding is intended to outline our general product direction. It is intended for information purposes only, and may not be incorporated into any contract. It is not a commitment to deliver any material, code, or functionality, and should not be relied upon in making purchasing decisions. The development, release, and timing of any features or functionality described for Oracle’s products remains at the sole discretion of Oracle.

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