IMS- The Inevitable Choice for Telecom Operators

IMS- The Inevitable Choice for Telecom Operators

Viet-Dung DAMviet-dung.dam@insalien.org

The 2nd VNTelecom SeminarTelecom Paris Tech, 05/2009

09/05/2009

Agenda

1- Convergence & IMS (IP Multimedia Subsystem)

2- Rich Communication Suite - RCS

3- Business with IMS

4- What’s next ?

2

Voice & Data

Devices

Fixed & Mobile

Media &

Network

1. Convergence & IMS >> What is Convergence ?

Voice & DataA true multimedia experience that transforms the way we communicate (e.g. VoIP, Voice over cable, Mobile VoIP)

DevicesTelecoms functionality added to laptops, games, music consoles and vice versa (e.g. Nintendo with Wi-Fi, Mobile with Walkman, iPod with phone)

Media & NetworkReinventing home entertainment (e.g. IPTV, movie download)

FMCAllow customers to enjoy the best of both worlds (e.g. BT Fusion)

3

1. IP-Convergence & IMS >> IP Multimedia Subsystem

Technical View

I-S-CSCF

P-CSCF

DNS/ENUMHSS

presence

IPTVconversaApplication layer

IMS control

Transport layer IP core networkMobile

accessFixed

access

Wireless access

Standardization- First introduced in 3gpp R5 in 2002- 3gpp R6: internetworking with Wlan- 3gpp/ Tispan R7: support for fixed network

SIP is used as signaling protocol in IMS

IMS – a layering architecture• Application layer:- All IMS services are deployed on this layer

• Signaling layer: - A common control plane that initiates & manage all call

sessions

• Transport layer: - Networks like mobile, fixed, wireless,.. are considered as access networks to IMS

MGCFMRF c/p

others

4

1. IP-Convergence & IMS >> IP Multimedia Subsystem

IMS – An Enabler

- Enhance service agility, deliver multimedia services - Rapid roll-out of new & innovative service -> short TTM- Enable Convergence: Fixed & Mobile, Voice & Data - Horizontal framework for service delivery, services independent from access

network- Lowering Opex- 3rd party interoperability

Transport

AS-1 AS-2 AS-3

Service control

Service control

Service control

Transport

Common control plane

AS-1 AS-2 AS-3

5

1. IP-Convergence & IMS >> IP Multimedia Subsystem

Importance of IMS

Most of respondents state that IMS is a fundamental part for the IP-Convergence

36% of critical commercial respondents felt that IMS could change the Telco industry

6

2. Rich Communication Suite

IMS Services

RCS was established in May 2007, supported by many operators & infrastructure vendors. The main objective of RCS program is to speed up the introduction of commercial IMS services.

Enriched Call

Call enriched with multimedia sharing

Enriched Phonebook

Contacts enhanced with capabilities &

presence

Enhanced messaging

Conversational messaging experience

Source: GSMA RCS program

7

IMS is not a business model itself but it implies changes in business model

3. Business with IMS

Opportunities

- Walled garden: deliver services on its own existing network- Smart pipe: support its own services, partners’ services or 3rd party’s services- Federated IMS: combination of walled garden & smart pipe- …

8

3. Business with IMS

Difficulties

Technology constraints are not the main issue for IMS deployment

Source: STL Telco 2.0

9

4. What’s Next ?

IMS is now in the deployment phase..

IMS- The INEVITABLE choice for Telecom Operators

Source: STL Telco 2.0

10

Thank you for your attention.

The 2nd VNTelecom SeminarTelecom Paris Tech, 05/2009

11