Telecom legacy landscape altanai

TELECOM LEGACY SYSTEM

- Altanai Bisht- [email protected] http://altanaitelecom.wordpress.com

Legacy Landscape

2

Transmission•ATM/Frame relays primarily constitutes the legacy.•Moving towards IP/MPLS.

Access•Transformation from hardware specific POTS / PSTN / ISDN towards NGN and VOIP.

Core•Packet Switched NGN Soft Switches.•Reduced cost of SIP Trunks over ISDN trunks.

Service Delivery•Harmonized and uniform open standard based service delivery platforms over legacy Proprietary SDKs

3

Domain Elements Characteristics Transformation Path

Transmission ATM / Frame Relay -Hardware Specific-High Expenses

-IP-MPLS

Access POTS / PSTN / ISDN-Hardware Specific-High Expenses-Low stability

-NGN-VOIP

Core Traditional Switches / ISDN

-High OPEX/CAPEX-Soft switch-SIP Trunking

Service Delivery Traditional IN switches -Hardware Centric -Based on Open Standards

4

Current Telco networks Closed Telco NGN networks - Closed

Internet – open

Circuit switched technology ATM/IP based technology IP based technology

Intelligent network Less intelligent network Dumb network

Dumb terminal More intelligent terminal Intelligent terminal

User-user services centrallycontrolled by provider oftransport service

User-user services centrallycontrolled, with much greaterscope for third party services..

• User-user services run by usersthemselves. No service creation -services and applications runfrom edge.

Interconnection is service relatedand controlled

Interconnection may occur atvarious levels. Above the IPlevel it is likely to be servicerelated and controlled.

Interconnection is open and onlyat IP level.

Few/no third party services Few/no third party services Numerous third party services

5

Soft Switch

Benefits of NGN Soft Switches over Legacy Switches

• Increase the granularity and power processing distribution of the Network–Low density interconnection–Signalling, Media and IN capabilities distributed or concentrated depending on carrier needs• One Network–Reduction planning and engineering time–Reduction maintenance and operation costs• Transport–Eliminate the need of internal E1 –Reduction bandwidth needed –Reduction maintenance and operation costs

•Circuit Switched

• Monolithic

•Proprietary

•Expensive

•Dependant

•Packet Switched

• Distributed

•Open Interfaces

•Scalable

•Vendor independent

• Convergence

Legacy Switch NGN Soft Switch

6

Trunking

Benefits of SIP Trunking over ISDN Trunking

• Reduce Usage Costs: Upto 30% cost reduction through multi-modal communication capabilities of SIP Trunking enables.

• Trunk Aggregation: Centralize and eliminate redundant connections. Idle connections at one location to be used for calls at other locations which gives increased flexibility over traditional T1 PRI.

• Flexibility: Gives the flexibility to expand or contract the capacity of no. of connections required.• Improved quality:  Keeps the communications on pure IP connections vs. T1 PRI connection, improving voice and

video quality and preserving features like HD audio.• Simplified Billing:  Make it easy to get started and simplify monthly invoice review.

ISDN PRI SIP Trunking

Usage costs On a comparable basis, ISDN PRI service can be 2x the cost of SIP Trunking service.

Around two times less costly.

Aggregation of trunks and access

T-1 and ISDN PRI access arrangements require that trunks be purchased in bunches of 23 or 24. For each T-1 or ISDN PRI access connection, the customer has to rent a 1.544 Mbps dedicated line to the carrier’s serving point.

Centralize and eliminate redundant connections. Buy exact number of connections needed(no need to buy in increments of 24)Idle connections at one location to be used for calls at other locations. SIP Trunking services typically allow ports to be added or deleted quickly.

Free features Features like call transfer may cost $50 per trunk per month, making a SIP option far more advantageous.

SIP Trunking services often include services that charged for on ISDN PRI or T-1 services

Simplified billing and administration

Organizations spend considerable time and effort processing and auditing telephone bills, tracking usage, and setting up internal chargebacks.

Bundling options make it easy to get started and simplify monthly invoice review•Per User – Local and long distance service can be priced at a flat rate per user•Per Port – Priced like a flat-rate SIP port that is shared by a number of users 

Key Highlights of NGN Service Layer• SDP playing as a Broker.• SOA and Open APIs pave the way to open and decentralized (distributed) SDPs.• SDP offered as the service of the cloud(SDPaaS).• Data enhanced SDP (e.g. via data mining capabilities).• Moving towards software centricity and low cost based SDPs.• Service Orchestration with Internet and legacy.• Fast and agile development and deployment of convergent services.• IMS providing the framework for underline network agnosticism across fixed and mobile.• Resource brokering for mediation.• RESTful interface and web application based integration.

7

Service Delivery Layer

• Existence of multiple domain specific SDPs(Mobile, IPTV and legacy broadband services etc.)

• Function centric architecture

• Proprietary SDKs

• Legacy service delivery Inefficient an expensive.

• Harmonized and uniform service delivery layer.

• Open APIs for 3rd parties and social features.

• Data Centric service architecture

• Standard interface defined SDKs.

• Strategic differentiator for telecom providers through Multi-party business models for innovative services.

Legacy Service Layer NGN Service LayerGSM

PSTNInternet

TV

Back Office

Applications

Service DeliverySession ControlTransmissi

on

Terminals

VOIP

Presen

ce

Internet

TV

Back Office

Applications

Service DeliverySession ControlTransmi

ssion

Terminals

Thank you

For more information visit : http://altanaitelecom.wordpress.com

8