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Agile IMS for the All-IP Era

Jonathan Zarkower

Director, Product Marketing

Oracle Communications

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Converged IMS Objectives

Access network independence

Service expansion & innovation

Agile & OTT ready

Universal session delivery

architecture

Central subscriber

profiles

Regulatory compliance

Integrated mobility

Rapid deployment of

new applications and services

Unifying IMS & OTT Session Delivery

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Blending of Different Worlds

Time and time again the word that is used to

define the success of SMS is: Ubiquity

Juniper Research

Message in an IP-World, September 2012

Interoperability

Reachability

Extensibility

Regulatory compliance

PSTN

Time and time again, the success of OTT

communications is time.

Ease of use

Fast to deploy

OTT

VoLTE

RCS

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IMS Has Not Kept Pace with the Demands of Modern Communications

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E-CSCF

P-CSCF

S-CSCF MGCF

HSS

Cx

IP Multimedia Networks

IMS-

MGW

CS Network

Mn

Mb

Mg

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MRFP

Mb

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Legacy mobile

signalling Networks

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MRFC

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CS

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Cx

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Cost & Complexity of Traditional IMS Hinders Service Innovation

Carriers must come to grips with the

fact that IMS is too costly and complex

to adopt in a wholesale manner and

that the architecture will be adopted

over the next few years in an

incremental fashion.

IMS Status Report:

A Protracted Adoption

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Need for Agility During Service Transition

LTE-based

Services • VoLTE

• RCS

LTE-based

Services • VoLTE

• RCS

Source: Chetan Sharma Consulting –

Mobile 4th Wave: Evolution of the Next Trillion Dollars

Fixed Network

Modernization • CVoIP

• BVoIP

• SIP Trunking

Telco-OTT

services

Policy-enabled

access

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New Approach: Agile IMS

Rapid time to market

Continually iterate

Invest with success

ag·ile adjective \ˈa-jəl, -ˌjī(-ə)l\ able to move quickly and with suppleness, skill, and control

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Network Function Virtualization is Cloud for SP Networks

Deploying and delivering

software-based network

functions and services

– Consolidate disparate

equipment types on to

standard high-volume COTS

hardware

– Leverage standard IT

virtualization technologies

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NFV complements Software Defined Networks

Category SDN NFV

Purpose Separate control and

data,

centralization of control

programmability of

network

Relocation of network

functions from dedicated

appliances to generic

servers

Industry target General IT Service providers

Target Devices Commodity servers and

switches

Commodity servers and

switches

Initial

Applications

Cloud orchestration and

networking

Routers, firewalls,

gateways, CDN, WAN

accelerators, SLA

assurance, IMS session

delivery

Standards body Open Networking Forum ETSI NFV Working Group

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Reasons for NFV

Reduced operating costs

Increased speed of innovation

Resource sharing across services

Finely controlled service introduction

Encourages open ecosystem

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Web Cloud is Easier Than Telco Cloud

IT ecosystem is just starting to consider RTC requirements

Media-based functions are the hardest to virtualize

Telco-specific benefits will take time to realize

Purpose-built hardware will continue to play a significant role for the foreseeable future

Commercial Virtualization Technologies Were Not Made for RTC

Web-based cloud

Stateless

Light uplink, heavy downlink

TCP

TLS

Processing bursts

Queued

Cached content

Layers 5-7

IMS RTC cloud

Stateful

Heavy uplink & downlink

UDP

IPsec

Continuous processing

Instantaneous

Real time streams

Layers 3-7

≠

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Elegant design enables virtualization

Requirements Oracle IMS core Typical IMS core

Homogeneous

software Single signaling engine that

integrates 3GPP functions Different software for each 3GPP

function

Minimal interfaces Interfaces dynamically created &

exposed as needed Dozens of static internal and external

interfaces

Simple element

configuration Auto-configuration of new child

elements New configuration for each addition

element

Vital pre-requisite for true elasticity

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Oracle Initiatives Converge on NFV

NFV Oracle

Communications products

Oracle Linux & Solaris

Oracle IMS products

Oracle Policy and Charging Products

Oracle Core Routing products

Oracle Cloud and Virtualization Technologies

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