A webinar session helping mobile operators understand the following concepts: • What is the difference between VoLTE interconnect and roaming? • What are the critical steps and components necessary to successfully implement a VoLTE interconnect solution? • How do Electronic Number Mapping (ENUM), session and policy control, and interworking impact VoLTE interconnect? • What are other interconnect services – such as ViLTE, SMS-over IP (SMSoIP) and Rich Communications Services (RCS), including Wi-Fi calling – that mobile providers can implement using the IMS framework needed for VoLTE?

1. Syniverse Proprietary
1
Making VoLTE Interconnect Work
Ken Hammer
VP Next Generation Solutions
#VoLTE

2. Syniverse Proprietary
2
VoLTE is on the Rise
Source: GSMA
300 VoLTE-
capable devices
480 operators have
commercially launched LTE
networks with 550
forecasted by end 2016.
46operators in
29countries commercially
launched VoLTE-HD
118operators
in 56countries
investing in VoLTE
#VoLTE

3. Syniverse Proprietary
3
Industry Stats
Sources: GSMA, Analysys Mason
Annual costs can
rise to about
$45 million
in 5 years, for a
subscriber base of
around 75 million
Typical Tier 1
operator, cost of
deploying and
operating an on
premise IMS solution
would be about
$10 million
By 2018, it is expected that about
600 million smartphone users
worldwide will use VoLTE as their default voice service
#VoLTE

4. Syniverse Proprietary
4
Challenges for Operators
Supporting 2 Networks
Market Forces
Revenue Loss
Commoditization
Stagnation
Infrastructure
Investment
#VoLTE

5. Syniverse Proprietary
5
VoLTE Interconnect vs. VoLTE Roaming
IPX
MNO A MNO B
VoLTE Interconnect
IPX
MNO A MNO B
VoLTE Roaming
MNO A Subscriber
@ Home
MNO B Subscriber
@ Home
MNO A Subscriber
Roaming
#VoLTE

6. Syniverse Proprietary
6
VoLTE Interconnect
Faron Achziger
Senior Product Manager, Next Generation Solutions
#VoLTE

7. Syniverse Proprietary
7
Understanding VoLTE Interconnect
Challenges
 Supported LTE infrastructure
 Signaling protocol shift from SS7 to Diameter and SIP
 SIP Normalization
 Working with the variations in standards IR.34
 Pre early call setup
 Bandwidth management
 Charging and Accounting
 Emergency and Priority calls
 Multimedia interworking between operators
 Voice transcoding
Advantages
 Faster call setup
 Higher quality voice and video calls, CoS (IPX)
 Efficient use of spectrum, releasing extra capacity
for data
 Optimizes network and service management
 Simplifies service delivery
 Security based on IPX
 Support for GSMA IR-92/IR-94
 Leverages IMS core in the cloud
 Real-time diagnostics and analytics
IPX
xCSCF
MME
Home A Party Home B Party
IBCF
VoLTE
Interconnect
EPC
IMS
Exchange
IMS
MME
IBCF
EPC
IMS
xCSCF – Call Session Control Function
IBCF - Interconnection Border Control Functions
xCSCF
#VoLTE

8. Syniverse Proprietary
8
IMS-Based Services
An industry-standard framework for supporting IP-based services
Services Service Framework Foundation
#VoLTE

9. Syniverse Proprietary
9
What is Needed to Support VoLTE
Interconnect?
 SIP normalization
and mediation
 Transcoding
 Codec mediation
 VoLTE to CS
interworking
Network:
 Session throttling
 Bandwidth utilization
management
 CoS prioritization
Commercial:
 Black/white listing
 Service management control
 IWF control
 Electronic Number Mapping
 Translation of E.164 to an IP address
 Supports migration from legacy to IP based services
Interworking Function Session and Policy Control
ENUM (IR.67)
#VoLTE

10. Syniverse Proprietary
10
Interworking Function
 SIP normalization
and mediation
 Transcoding
 Codec mediation
 VoLTE to CS
interworking
Network:
 Session throttling
 Bandwidth utilization
management
 CoS prioritization
Commercial:
 Black/white listing
 Service management control
 IWF control
 Electronic Number Mapping
 Translation of E.164 to an IP address
 Supports migration from legacy to IP based services
 Supports service based IP routing
Interworking Function Session and Policy Control
ENUM (IR.67)
#VoLTE

11. Syniverse Proprietary
11
IPX IMS Traffic – Use Cases
SIP Interworking Function and Media Transcoding
Basic Normalization
Advance Mediation
Media Transcoding
Op
Op
Op
Service Partner
Service Partner
Service Partner
SIP header: XYZ
SIP: SUBSCRIBE/NOTIFY
AMR-WB
SIP header: ABC
SIP: OPTIONS
G.711
SIP header: XYZ
SIP: SUBSCRIBE/NOTIFY
AMR-WB
SIP header: ABC
SIP: OPTIONS
G.711
Normalize
fields within
the SIP
message to
customer
requirements
Mediate
between
different SIP
method types
Transcode
media for
voice and
video streams
IPX Transcoder
Application Server
IPX Proxy
#VoLTE

12. Syniverse Proprietary
12
Session and Policy Control
 SIP normalization
and mediation
 Transcoding
 Codec mediation
 VoLTE to CS
interworking
Network:
 Session throttling
 Bandwidth utilization
management
 CoS prioritization
Commercial:
 Black/white listing
 Service management control
 IWF control
 Electronic Number Mapping
 Translation of E.164 to an IP address
 Supports migration from legacy to IP based services
 Supports service based IP routing
Interworking Function Session and Policy Control
ENUM (IR.67)
#VoLTE

13. Syniverse Proprietary
13
 Policy Management is necessary for VoLTE
 Factors for VoLTE call support:
 Appropriate data rate
 Bearer type
 QoS Requirement
 Gating control
 Capability Exchange management
and IWF
 Challenges for PCRF within a VoLTE network:
 Scalability
 Latency
 Session Correlation
 Redundancy – geographic
 Service enablement parameters
 Session management and control
Policy Management and VoLTE
#VoLTE

14. Syniverse Proprietary
14
ENUM
Mike Carnes
Senior Product Manager, Next Generation Solutions
#VoLTE

15. Syniverse Proprietary
15
ENUM (E.164 Number Mapping)
 SIP normalization
and mediation
 Transcoding
 Codec mediation
 VoLTE to CS
interworking
Network:
 Session throttling
 Bandwidth utilization
management
 CoS prioritization
Commercial:
 Black/white listing
 Service management control
 IWF control
 Electronic Number Mapping
 Translation of E.164 to an IP address
 Supports migration from legacy to IP based services
 Supports service based IP routing
Interworking Function Session and Policy Control
ENUM (IR.67)
#VoLTE

16. Syniverse Proprietary
16
ENUM
Critical component of VoLTE services
16
Syniverse Proprietary
Tier 1
Tier 2
eTier 2
SP A
eTier 2
SP B
eTier 2
SP CTier 2 Tier 2
Tier 0 &
eTier 0
Integrated
Tier 2
Querying
MNO
#VoLTE

17. Syniverse Proprietary
17
IMS
Brian Beach
Senior Technology Manager, Next Generation Solutions
#VoLTE

18. Syniverse Proprietary
18
SIP
Diameter
Legacy Signaling SS7
SMS Messaging SMPP
MMS Messaging MM4
LTE Data Diameter
Advantages of IMS
• All IP-network for simpler co-existence of
services
• Provides a better mobile experience
• Keeps more customers in your network
• Launch new revenue-generating services
• Collaborate with ISPs and other third parties
through APIs
IMS
Interconnect
Legacy Interworking IMS Interworking
#VoLTE

19. Syniverse Proprietary
19
Rich Communication Services (RCS) Drive
Unique Business Values
“GLOBAL OPERATORS, GOOGLE AND THE GSMA ALIGN BEHIND ADOPTION
OF RICH COMMUNICATION SERVICES” February, 22, 2016 Press Release
#VoLTE

20. Syniverse Proprietary
20
Q&A
#VoLTE

21. Syniverse Proprietary
21
Thank You!
For more information, visit www.syniverse.com
or follow us on Twitter @Syniverse
#VoLTE