Westminster College of Computing

                                                 Warwick House, 64-65 Cowcross Street,

 London EC1M 6BP

Tel: 020 7608 7010   Fax:020 253 7406

E-Mail: training@wcc.co.uk Web: www.wcc.co.uk

 

Postgraduate Diploma in

Open Settlements Protocol (OSP) Clearinghouse

 Course Fee  £9,990.00

                                                                                      Duration: 12 Months( full time)

                                                                                                    24 Months( part time)           

 

 

 

 
 

 

 


                                                                                                    

 

 

 

Westminster College of Computing - Conversion Course

    

           

 

Course Overview

For packet telephony service providers, terminating long-distance calls has inherent risks. With traditional circuit-switched TDM networks, a relative handful of carriers negotiated bilateral agreements for call interconnections. However, with the emergence of voice-over-IP (VoIP) carriers, the task of ensuring compatibility and interconnections with multiple TDM carriers can be difficult, from both a business and technical standpoint. Another risk is the lack of reliability of many new long-distance service providers. New entrants in this extremely competitive arena must find a way to ensure that call termination agreements are limited to reliable business partners.

VoIP gateways and clearinghouse solutions offer an alternative. By taking advantage of Open Settlements Protocol (OSP) support in  devices, packet telephony service providers can employ reliable third parties to handle VoIP call termination while leveraging the bandwidth efficiencies and tariff arbitrage advantages that are inherent in IP. Thus the clearinghouses can serve as both a technical and business bridge for VoIP service providers. By signing on with such an organization and using OSP, VoIP carriers can extend service beyond the boundaries of their own network and immediately access the entire clearinghouse network of affiliated service providers.

The benefit is reduced barriers for VoIP competitors in the lucrative long-distance market. By using OSP—the only standard IP interface for VoIP clearinghouse functions—service providers have to do business with only a single settlements provider. As a result, there is no need to negotiate separate agreements with carriers in multiple countries, meet varied technical requirements for interconnection, make repeated arrangements for call accounting, or establish several credit accounts. With the OSP standard, a single clearinghouse can do it all.

At the same time, the OSP clearinghouse solution virtually eliminates the risk in doing business with new service providers with limited credit history—or with carriers in countries subject to currency fluctuations. In addition, it gives virtually every VoIP provider the worldwide calling reach they require.

 

 

Course Pre-requisites

 

 

Course Content

 

Introduction
Wholesale Voice over IP
The  Wholesale Voice Solution

Benefits and Features
Candidate Customers

Services Supported

Service A:
Minutes Aggregation and Resale (Including ASP Termination)
Service B:
Calling Card Services (Prepaid and Postpaid)

Prepaid
Postpaid

Clearinghouse Services
Service Options

Limited Egress Carrier-Sensitive Routing
Interconnect to Clarent-Based Clearinghouses

Architecture

Solution Architecture
Functional Areas

Gatekeeper Core

Scaling Network Size
Scaling Dial Plans
Fault Tolerance
DGK-Based IP Interconnect
Security
Network Management
TFTP Server Access

Shared Support Services

Billing
Security
Call Routing
Network Management
Remote Download

Non-SS7-Based POPs

Signaling Types
Size
Dial Plan
Billing
Fault Tolerance
Security
Network Management
Transparent Bearer Transport
TFTP Server Access

SS7-Based POPs

Signaling
Dial Plan
Fault Tolerance

Back-to-Back GW

Signaling
Voice Quality/Bearer Issues
Dial Plan
Billing
Fault Tolerance
Security
Network Management
TFTP Server Access

Call Topologies and SP Interconnection Methods

Carrier Interconnect Scenarios
Topology 1: Originating TDM/Terminating TDM

Description
Considerations
Applications

Topology 2: Originating TDM/Terminating IP

Description
Considerations
Applications

Topology 3: Originating IP/Terminating TDM

Description
Considerations
Applications

Topology 4: Originating IP/Terminating IP (Transit VoIP Network)

Description
Considerations
Applications

Deployment Templates

 

Solution Components
Major Components

 Voice Gateways
 H.323 Gatekeepers and Directory Gatekeepers

Resource Management
Call Routing
Security
External GKTMP Applications
CDR Generation

 Signaling Controllers
 SS7 Signaling Link Termination Systems

Additional Components (for Shared Services)

RADIUS/OSS Servers

CDR Collection and Billing System Front-Ending
User Authentication and Authorization
Application Hosting
Security
Settlement

Ecosystem Partner H.323 GKs
Gatekeeper Application Servers
OSP Servers

Authentication of GWs or Carriers
Call Authorization
Call Routing
CDR Collection
CDR Correlation and Settlement

Prompt Servers
TFTP Servers
Management Systems

Designing a Solution
First Steps
Design Issues and Choices

IP Interconnect Variations

DGK-Based Interconnect
OSP-Based Interconnect

Call Routing and Billing/Settlement

Call Routing
Billing/Settlement

Basic Dial Plan

Fault Tolerance
Security

Network Management

Configuration Management
Element Management
Fault Management
Reporting

Service Designs

Service A:
Minutes Aggregation and Resale (Including ASP Termination)

Template A1:
TDM-to-TDM Call Topology

Dial Plan
Billing/Settlement
Security

Template A2:
TDM-to-IP Call Topologies Using DGK-Based IP Interconnect

Dial Plan
Billing/Settlement
Security

Template A3:
TDM-to-IP-Based Interconnect with OSP

Dial Plan
Billing/Settlement
Security

Template A4:
IP-to-IP-Based Interconnect (Transit Network) with DGK

Dial Plan
Billing/Settlement
Security

Template A5:
IP-to-IP-Based Interconnect (Transit Network) with OSP

Dial Plan
Billing/Settlement
Security

Service B:
Card Services (Prepaid and Postpaid)

Template B1:
TDM-to-TDM Call Topology

Dial Plan
Billing/Settlement
Security
Prompting

Template B2:
TDM-to-IP Call Topology Using DGK-Based IP Interconnect

Dial Plan
Billing/Settlement
Security
Prompting

Template B3:
TDM-to-IP-Based Interconnect with OSP

Dial Plan
Billing/Settlement
Security
Prompting

Template B4:
IP-to-IP-Based Interconnect (Transit Network) with DGK

Dial Plan
Billing/Settlement
Security
Prompting

Template B5:
IP-to-IP-Based Interconnect (Transit Network) with OSP

Dial Plan
Billing/Settlement
Security
Prompting

Deploying Service Options
Limited Egress Carrier-Sensitive Routing

Considerations
Applicability: Templates A1 and B1

Dial Plan
Billing/Settlement
Security

Applicability: Templates A2 and B2

Dial Plan
Billing/Settlement
Security

Applicability: Templates A3 and B3

Dial Plan
Billing/Settlement
Security

Applicability: Templates A4 and B4

Dial Plan
Billing/Settlement
Security

Applicability: Templates A5 and B5

Dial Plan
Billing/Settlement
Security

Interconnect to Clarent-Based Clearinghouses

Considerations
Applicability: Templates A2 and B2

Dial Plan
Billing/Settlement
Security

Applicability: Templates A4 and B4

Dial Plan
Billing/Settlement
Security

 

Funding
Westminster College of Computing is a registered Learning Provider. Students are able to apply for  Career Development Loan.

Professional Recognition
Westminster College
of Computing is a British Computer Society (BCS) Recognised Course Provider.

Entry Requirements
A first degree in a non-computing discipline at 2(ii) level or equivalent is required.

 

Course Duration

 

This course is taught for 12 Months full time or 24 Months part time hours on weekdays, weekend, and evenings. About 50% of the time will be spent on theory classes and the rest 50% will be practical on our Live Telecom Networks.

 

Course Delivery Method

 

This course is taught by highly qualified and experienced lecturers in a class of maximum eight to ten students. Then theory classes will be conducted prior to the practical sessions. Towards the end of the course you will be asked to develop a project of your own interest.

 

Hands-on practical session will be on live VoIP  Cisco Gateway and Networks and  schedule will be given during the practical session.