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Leveraging Wi-Fi Calling To Reduced Operator Costs and Improve the Customer Experience Steve Northridge Email: [email protected] Twitter: @stevenorthridge
Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | Photo Source: Boston Public Library 3
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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
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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
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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
Copyright © 2016, Oracle and/or its affiliates. All rights reserved. |
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
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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
16
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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CSP’s Views on Wi-Fi Calling
17
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
By 2020 70% of MSOs and over 85% of MNOs plan to deploy Wi-Fi Calling
Copyright © 2016, Oracle and/or its affiliates. All rights reserved. |
CSP’s Views on Wi-Fi Calling
18
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
Addressing coverage issues is the number 1 reason for deploying Wi-Fi Calling
Copyright © 2016, Oracle and/or its affiliates. All rights reserved. |
CSP’s Views on Wi-Fi Calling
19
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
Survey of 62 MNOs – 5% “Wi-Fi First” may be much higher amoung MSOs
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Operators Are Recognizing Value Of Wi-Fi Calling
GSMA Score Card May 31, 2016
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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
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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
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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
• Address Indoor Coverage Issues
• Provide a mobile network experience with the native dialer and same mobile number
• Introduce VoLTE services over Wi-Fi to create stickiness upon LTE roll out
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With VoLTE & LTE
• Address Indoor Coverage Issues
• Provide a mobile network experience with the native dialer and same mobile number
• Seamless handoff between LTE and Wi-Fi
Wi-Fi Calling Does Not Require VoLTE or LTE
Copyright © 2016, Oracle and/or its affiliates. All rights reserved. |
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
Copyright © 2016, Oracle and/or its affiliates. All rights reserved. |
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
Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | 26
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
Copyright © 2016, Oracle and/or its affiliates. All rights reserved. |
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
Copyright © 2016, Oracle and/or its affiliates. All rights reserved. |
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
Copyright © 2016, Oracle and/or its affiliates. All rights reserved. |
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
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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
Copyright © 2016, Oracle and/or its affiliates. All rights reserved. |
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
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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
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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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