VoLTE - making it work

Seamus Hourihan SVP, Strategy

Acme Packet

LTE Promised land?

AFRICA?

$200 million

4 years

nada

IMS 3GPP R8 - ETSI TISPAN architecture

Oth

er IP

Ne

two

rks

AS

P -

Mw

Mw

Mw/Mk/Mm

Mr

Mi

Mp Mn Gq

Dx

Sh

Rf/Ro

PS

TN

/ISD

N

Ie

Mi

Oth

er IP

netw

ork

s

UE

Mg

Mj

Gm

ISC Cx

Dh

Ic

Rr/Ro

Cx

Ib

Ia

Id

PS

TN

If

PDF

MGCF

I-CSCF

BGCF

HSS

S-CSCF

MRFC

Mw

SLF

Charging Function

SGF SGW

IWF

I-BGF

RACS

AS

IBCF SEG

NASS

IMS functions

ETSI TISPAN extensions

SIP

H.248

DIAMETER

Other

IP transport (access and core)

MRFP A-BGF T-MGF MGW

P-CSCF

Access

SBC

Source: TISPAN-3GPP Workshop

SGW

MGW

SEG

Inter-

connect

SBC

IMS 3GPP release 10

Golf

IMS architecture Web site architecture

DB DB

AS AS AS

LB-L

LB-G

WS WS WS WS

What only really matters are endpoints & interconnects

GOs-out/intas 2

GOs-out/intas 1

Deploying IMS in web-like way

Fire-walls

LB

Web servers

Load

balancers

Firewalls

AS media

AS

TDM

TDM

TDM

TDM

M Q C

M Q C

Database

IMS architecture Web site architecture

DB DB

AS AS AS

LB-L

LB-G

WS WS WS WS

IMS cloud architecture

Web site architecture

DB DB

AS AS AS

LB-L

LB-G

WS WS WS WS

DB DB

AS AS

SLB-L

SLB-G

SMX SMX SMX DSC

EPC IC

IMS simplified

Services enabled

Voice, video and RCSe

4G data services

FMC (small cell, WiFi)

Interconnect and roaming

SMX Session management

CSCF functions plus SBC

SBC and MSG Border control

P/E/I-CSCF + SBC

Multiservice Security Gateway

Next-gen signaling core

Core Diameter Signaling Controller (DRA)

Session Routing Proxy (BGCF)

Interconnect and roaming

I-SBC (I-BCF/I-CSCF)

I-DSC (DEA)

Deployment option choices

eUTRAN

LTE

FTTx xDSL Cable

Enterprise

Fixed Access

IMS

EPC

Rx

e2

Rf

Cx/Dx

ISC

Mw

Gm Gm

Rx/Rq

eUTRAN

LTE

FTTx xDSL Cable

Enterprise

Fixed Access

EPC

Rx

e2

Rf

Cx/Dx

ISC

Gm Gm

Rx/Rq

IMS

Multivendor CSCF solution Best of breed border control

Simple SIP Multimedia-Xpress

Peer Peer

Access SBC SMX

The elastic IMS cloud using VMs

Elasticity Manager

Virtualization Layer

SMX SMX SMX SMX SMX

Session-aware Load Balancer

Roaming

$60 billion

LTE roaming

MNO 1

MNO 3 MNO 4

MNO 2

MNO 5

MNO 7 MNO 8

MNO 6

IPX A

IPX B

GSMA style

$B MNO 3 MNO 4

MNO 5

MNO 7 MNO 8

MNO 6

MNO 2 MNO 1

Internet

OTT style

0

Acme Packet

LTE voice and data roaming solution

17

17

Services & apps

Core transport

Access

Aggregation PoP

eUTRAN

IPX

eUTRAN

Visited

SIP signaling SIP media

Packet data Diameter

Home

Internet

S9/S6a

S6a

S9 S9

S6a

IPX proxy IPX proxy

OTT style roaming & off-load solutions

IPsec

tunnels TLS/DTLS

tunnels

RTMP (Flash)

WebRTC

Small cell

WiFi

IMS/NGN SIP services

WiFi WiFi

Tunneled Session Management (TSM)

Exploits “app” rage

Tunneled session Single user’s real-time and data

communication services within single tunnel - SSL/TLS, DTLS, others

Management

- Security

- User authentication

- Privacy and confidentiality

- Service delivery security (Net-SAFE)

- High availability

- Admission controls

- Bandwidth – per app, user group

- Server transaction loads

- Strict firewall traversal

Service provider data center

TLS or DTLS tunnel

Web SIP MSRP

User DB

Acme Packet-enabled TSM client

Tunneled Session Management - Acme Packet Confidential 20

TSM benefits

Seamless roaming

Session ID & IP address held constant by SBC and endpoint

Tolerant of access network change & slow switchover times

Endpoint appears static to service delivery infrastructure

Mobile device-optimized

Customized UI with application-specific content

Minimal impact on battery consumption

Simple integrated application download

Standards-based

IMS-VoLTE

Acme Packet Acme Packet 21

TSM vs. RTMP/WebRTC

TSM & SIP clients

Web

servers

Any

network

IMS/RCSe

data center

HTTP(s)

Data

SIP w/RTP

Voice

video, IM

MSRP

Video/file

share

SIP

core

MSRP

servers

Browser-enabled

RTMP or WebRTC

Web

servers

Any

network

IMS/RCSe

data center

HTTP(s)

Data

RTMP

/WebRTC

Voice

video

MSRP(s)

Video/file

share

SIP

core

MSRP

servers

10M subs

170-340K tps

All-IP networks are built differently

SIP to establish communication sessions

Diameter to exchange subscriber profile data

Exploding signaling traffic

Moving beyond voice - UC, RCS messaging, collaboration

Extreme mobile data

Mobile device proliferation – smartphones, tablets, M2M

Increased mobility and roaming

Cost effective scaling solutions required to deal with growing signaling demands

SS7

SIP VoIP RCS

VoLTE Hosted UC

Diameter Authentication

QoS Charging Mobility

2G/3G & PSTN LTE & IMS

Next gen signaling core requires scalable performance

LTE 3G DSL/Cable/

FTTx

Internet

Diameter servers

HSS, OCS, PCRF

Diameter clients

MME, PDN GW, GGSN, CSCF, AS

Roaming partners

IPX carriers

Roaming hubs

SIP core I/S-CSCF

IMS edge SBC,

P-CSCF

NGN edge C5 SS, S-MSC

Peering partners

Wholesale transit

IPX carriers

TDM MGCF

IP I-SBC

IP DSC

1. IMS – Is Makin’it Simple

2. Roaming – interconnect & OTT flexibility

3. Signaling core - scaling performance

VoLTE – making it work

The leader in Session Delivery Networks solutions

Seamus Hourihan SVP, Strategy