Interconnect and Addressing Solutions
for an IP World
Next Generation interconnect
topologies and enabling new
service models
IPX concepts are in the early stages of adoption for
Next Gen network interconnect, complementing the
existing IP bilaterals, peering and hubbing services.
This session will discuss the connectivity models,
addressing solutions and implications of
implementing multilateral IP interconnects, including
number portability and service discovery.
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1 Billion
Voice Calls
5 Billion Text Messages
14 Billion DNS Queries
112 Million
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Mobile/Multi-Media
Messages
But its more
than just
numbers…
It’s networks and
connections
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IP Network Growth Increases Complexity
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•
•
•
•
•
•
•
Enabling market interoperability
Connecting islands of IP
Enabling new services
Integrating network assets
Connecting peers, partners and ecosystems
Carrier ENUM
Number Portability
Technology, Networks and Interconnection
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IP Growth Fueling Addressing Challenges
• Broadband growth fuels “triple play”
»
»
Projected 33% penetration of all households by 2013 (both
fixed and wireless)
Over 500 million broadband IP enabled subscribers by 2013
• IMS subscriber growth 4x over next 3 years
»
ENUM positioned to be standard for IMS Inter-networking
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IP Growth Fueling Addressing Challenges
• Evolving networks (such as IMS) require more
granular addressing to interconnect with other
operators
»
The originating network must know which terminating
subscribers have new services
• Bilateral address exchange will evolve to local and
national federations for interconnect
»
Ultimately these private federations will desire global reach
• ENUM positioned to be standard for IMS Internetworking
Interconnection is key to IP Service success
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Why Interconnect Networks?
• Metcalfe’s Law
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»
The "value" or "power" of a network increases in proportion
to the square of the number of nodes on the network.
Adoption of Next Generation services will increase substantially as
interconnection expands the addressable network/community
• BUT…
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»
»
How will users address each other?
How will this address actually find
the other user when in another network?
How do operators specify which services
a user has available?
Network Addressing is critical for interconnection
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Network Addressing
• Naming and addressing are critical for networking
• People and Service Providers know telephone numbers
• Billions of telephony devices only use numeric key pads
• People expect to initiate calls and other services within the global dial
plan
• Number Portability is a great competitive enabler
• But adds complexity to network addressing since every new service
must be port-corrected
• VoIP and PSTN domains MUST be transparently interoperable
• For both universal reach and network migrations
ENUM is the ideal technology for network addressing
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Interconnect and Routing Challenges
Country 1
TDM
Country 2
TDM
TDM
Numbers
Porting
TDM
CS
Evolving interconnect models
Bilateral interconnect
Switched hub carrier services
Growing challenges...
6000+ operators in 200+ countries
56+ countries with Number Portability
Bi-lateral solutions expensive and not scaleable
Interconnect and Routing Challenges
Service
Migrations
Country 1
TDM
IMS
TDM
RCS
IMS
Country 2
RCS
TDM
Service
Providers
TDM
IMS
TDM
RCS
IMS
RCS
TDM
IMS
Service
Providers
TDM
IMS
RCS
RCS
Carrier
IMS
RCS
Next gen Interconnect models
IP Interconnect, IP bilateral, IP Multilateral
Service interconnect, service hub, service mediation
New class of challenges
Service migration, service preference
Service discovery, end to end transport capabilities
Bi-lateral solutions expensive and not scaleable
Numbers
Porting
What problems can ENUM solve?
Ask about dialled number
Provide services & addresses
RCS/IMS
Customer
RCS/IMS
Customer
Choose IP interconnect
Originator Challenges:
Destination Challenges:
• Send traffic via C7 or IP?
• How will others find my services?
• Is the end destination compatible?
• How will others find my gateways?
• Which carrier or route can deliver?
• How will others find my service provider?
• What is the IP based address?
• How do I indicate my C7 or IP preference?
“Inform” others dynamically about how to reach your services
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Intra-Networking Example
Global NP Discovery For Direct Interconnections
Customer Requirement
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Evolving from use of
Carrier/Aggregator to Direct
Interconnections
Need to know if the TN is
owned by a direct connect
partner prior to route selection
Direct interconnections will be
worldwide
Solution Requires
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Global coverage
Number Portability Port
correction
Support for ENUM, SIP and
legacy SS7 interfaces
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Global
ENUM
Multimedia
Interconnect
Neustar Addressing Solutions
Intra-Networking Solutions
• NP Infrastructure Cost Reduction
• Finding Your Direct Interconnections
• New Service Delivery
• Managing Network Migrations
• Enterprise IP Connect
Provision
Query
Connectivity
Inter-Networking Solutions
• Policy Based Routing
• Global IMS Interconnect
• Global Inbound Route Advertisement
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Intra-networking Example
Multimedia
Interconnect
NP Infrastructure Cost Reduction
Customer Requirement
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Provision
Query
Connectivity
Elimination of costly LSMS and
SS7 infrastructure for NP
Controlled migration from SS7
Solution
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NP data is downloaded to
Pulse INP product on customer
premise
Customer issues real-time NP
query via TCAP/SS7
Regular NP updates are
uploaded to Pulse INP as
defined by Customer
ENUM and SIP query
interfaces allow for migration
from SS7
Pulse
INP
Pulse
INP
STP
STP
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Key
SS7 Connection
IP Connection
Intra-Networking Example
Enabling New Services and Managing Network Migrations
Customer Requirement
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Enable SMS/MMS services on next
gen fixed lines
Enable network migration to
consolidate acquired SMSC and
MMSC assets
Acquired
MNO MMSC
Originating
MNO MMSC
Aggregator B
Core
MNO MMSC
Solution
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Multimedia Interconnect registry is
provisioned with TNs for the acquired
MNO and the Messaging-enabled fixed
lines
TN service profiles define whether to
direct SMS/MMS to acquired network
assets or consolidated network
Service profiles published to Message
routing ecosystem
ENUM
ENUM
Provision
Query
Connectivity
Provision
Query
Connectivity
Multimedia
Interconnect
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Inter-Networking Example
Operator Policy-Based Routing Between Networks
Customer Requirements
Inbound/Outbound
Analysis
• Variable Policies based on a variety of
routing and classes of service
• Routing between carrier entities
(“Clients”)
• Routing between carrier customers
(“Partners”)
• International Hubbing service
Carrier
Entity
Carrier
“Clients”
Traffic
Metrics
Multimedia
Interconnect
Wholesale
Operator
Carrier
“Partners”
Metrics and Analysis
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•
Incoming analysis... For a specific
incoming trunk,
Outbound analysis... For a specific COS
and destination
Hubbing
Service
Carrier
Provisioning
Operator
Solution
• Multimedia Interconnect registry for centralized route administration
• Source and Destination based Routing Policy
• Integration of 3rd party Traffic and Volume Metrics
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CoS Based
Interconnect
Rules
Clients &
Partners
Inter-Networking Example
Dialog Telecom Global IMS Interconnect
Customer Requirements
IMS
• Dialog have launched an IMS network for
their 5M mobile subscribers
• IMS enabled subscribers will grow over
time
• Dialog requires all policy about their
network and services to be kept in a local
Dialog ENUM server
TDM
IMS
Global
ENUM
TDM
Solution
• Dialog provisions IMS enabled TNs in
Neustar solution to point to the local ENUM
server
• Interconnecting Networks query
Neustar solution to find the local ENUM
server for IMS TNs
• Local ENUM server provides addressing and
service data to trusted interconnect partners
(all policy is kept in Dialog server)
IMS
ENUM
Tier 2
IPX
TDM
Dialog Telecom
Global
Trading
Partners
Sri Lanka
Key
Provisioning
Query
Delegation
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Example: GSM Mobile IP Service Framework
Service Level Inter-working:
- End-to-End service control
- Managed access (3rd party)
- Service level (value) accounting
- Calling Party Pays
IP Interworking architecture
DNS/ENUM
System
“On-Net” Services
IP Packet Exchange - IPX
(Managed)
Public
Mobile
Networ
k
Mobile
Subscribers
Third
Party
Subscriber
Third Party
Provider
Corporate
Network
Fixed
Network
“Off-Net” Services
Public
Telecomms
Network
Subscribers
Internet
Network Level Inter-working:
- Best effort, “Bit pipe” transport
- No effective access control
Third Party
- Network level accounting (time/volume) Provider
- Mobile Party Pays
Corporate
Network
Fixed
Network
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Summary
ENUM technology is exceptionally well suited to
managing addressing information and enabling NGN
interconnection
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Using the well understood phone number
Across all legacy and next generation services
Anywhere in the world
The power of ENUM technology enables
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Rich policy management to
support operator business relationships
Provisioning efficiencies map TNs to
services to policies in a scalable manner
Global Reach via Global ENUM
This powerful combination enables solutions spanning
the IP technology and its adoption cycle
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Intra-Network and Inter-Network with Global interop
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Contact
Tim Ward
Neustar
Senior Director, Business Development
(timothy.ward@neustar.biz)
+44 1825 818141
Information on Neustar can be obtained at www.neustar.com
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