Telecoms Billing Fundamentals

5 Day Course
Code PWL140

Book Now - 3 Delivery Methods Available:

Classroom Virtual Classroom Private Group - Virtual Self-Paced Online


This course offers a comprehensive introduction to the main types of billing systems and services available in modern telecommunications. It is made up of the follwing four courses, which can be taken individually or as a 5 day program:

  • Telecoms Billing Introduction
  • Interconnect Billing
  • IP Billing
  • Billing for GSM, GPRS and 3G Mobile Systems


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Introduction (11 topics)

  • The Principle of Billing
  • CDRs
  • What about data?
  • Billing can be for:
  • Volume Billing
  • Always on
  • IP Billing
  • Mediation
  • Rating
  • Interconnect/Interadministration Billing
  • What makes a good Billing System?

Boundaries and Interfaces (5 topics)

  • Defining the major areas of Billing Support Systems (BSS)
  • The end-to-end generic billing process flow
  • Interfacing and co-dependant critical systems - marketing, finance, OSS, network management
  • Making a call and the key billing system information at the service provider, customer and account levels
  • How the levels are linked to support billing processes

The Service Order Process (4 topics)

  • Acquiring customers and gathering their information
  • Credit checking options
  • Data structures
  • Information security issues

Mediation and Event Processing (6 topics)

  • What is Mediation?
  • Carrier Challenges
  • Mediation Requirements and Features
  • Collection, Filtering and Consolidation
  • Presentation and Distribution
  • Return on Investment

Rating and Pricing (8 topics)

  • A Huge range of Options
  • Least Cost Routing
  • Tariffing Tables
  • CDR Formats
  • Options
  • Some CDR Record Formats
  • Different Rates for Different Customers
  • Guiding

Billing and Collection - Invoicing the customer (3 topics)

  • The Bill and the Engines
  • Convergent Billing
  • Convergence Models

Interconnect Introduction (2 topics)

  • What is interconnect?
  • Why interconnect matters

Fraud management (5 topics)

  • How Big a Problem is this?
  • Criminals are Lazy
  • Types of Fraud and Fixes
  • Don't Spend too Much
  • Checklist

Calling Cards (5 topics)

  • Calling Cards and Accounts
  • Cards and Batches
  • Life Cycles of Batches and Cards
  • Charging for Calling Cards
  • ASRs, Redial Causes and Least Cost Routing

Premium Rate Dialling (3 topics)

  • Cheap International Calls
  • Ranges of Access Numbers
  • Example Operators, websites and charges

Introduction to Interconnect (9 topics)

  • Introduction
  • What is interconnect?
  • Why interconnect matters
  • Declaration
  • The interconnect agreement
  • Settlement variations
  • The interconnect business process
  • Concepts and Terminology
  • Interconnect call scenarios

The Evolution of Interconnect (11 topics)

  • Accounting Rate
  • Sender keeps all
  • Element Based Conveyance (EBC)
  • Number Translation Services
  • Interconnect for ISPs
  • Web Hosting
  • Revenue share models
  • Interconnect and Number Portability
  • Call forwarding
  • Centralised database
  • How retail differs from interconnect

The fundamental Interconnect components (19 topics)

  • Scope
  • Management of reference data
  • CDR mapping, completion, repair and enhancement
  • Pricing
  • The rating process
  • Interconnect rating styles
  • CDR and bulk rating
  • Distance and destination based
  • Volume and Commitment levels
  • Revenue sharing
  • Content
  • Post pricing
  • Adjustments
  • Re-pricing
  • Discounting
  • Invoicing and Taxation
  • Summaries and Reports
  • Reconciliation processes and standards
  • Least Cost Routing

Implementing an Interconnect Billing Solution (3 topics)

  • Roles and resources
  • Outline implementation plan
  • Scalability and resilience

The Future of Interconnect (15 topics)

  • Competitive pressures
  • Voice and data trends
  • The impact of technology on interconnect
  • 3G services
  • IP interconnect
  • IP event records
  • QoS issues
  • Billing for IP services
  • The IP billing value chain
  • The total business solution for interconnect
  • Interconnect churn
  • Fraud and interconnect
  • "Operator Care"
  • Interconnect for the Board
  • Extending the boundaries of interconnect

The IP Billing Chain (2 topics)

  • The Food Chain
  • Volume Billing and its Limitations

So what is this? (7 topics)

  • Data Traffic
  • Connection Types
  • Layered Systems
  • IP Features
  • TCP
  • IP Routing
  • The Internet

Voice over IP (5 topics)

  • Why Voice over IP?
  • Patterns of Use
  • Voice and Data are Different
  • All the Protocols Needed
  • Billing Implications

IP Billing Components (11 topics)

  • Content or just Bytes
  • Example from ADSL
  • Problems and Mediation
  • Viewpoints
  • Online Trading Example
  • What could we charge for?
  • IP Security
  • IPDR
  • TOM
  • JAIN Initiative
  • Parlay

Mobile IP Billing (10 topics)

  • GSM & GPRS
  • The Basis of 3G
  • Tariffs
  • Roaming
  • Location-Based Services
  • Prepay
  • Charging Principles
  • Quality
  • CDRs
  • Conclusions to Ponder

How GSM finds users (3 topics)

  • Mobile Systems
  • Basic Roaming Operation
  • Billing Implications

Basic GSM billing (2 topics)

  • Billing Processes
  • Mediation

Transfer Accounting Procedure (TAP) (2 topics)

  • For voice
  • For data - TAP3

Prepay Billing (2 topics)

  • Different Models

GPRS billing (6 topics)

  • What is GPRS?
  • GPRS Billing Models
  • Charging Principles
  • The IP Billing Chain
  • Location-Based Services
  • Prepay

The UMTS Charging Architecture (5 topics)

  • Charging mechanisms
  • Offline and Online charging
  • Overall Architecture
  • Charging Functions
  • CDR

LTE Charging Architecture (3 topics)

  • LTE Core
  • Evolved Packet Core
  • Diameter Applications for Billing


Delegates should have good understanding of telecommunications principles.

Additional Learning

The courses below may help you meet the knowledge level required to take this course.

Scheduled Dates

Please select from the dates below to make an enquiry or booking.


Different pricing structures are available including special offers. These include early bird, late availability, multi-place, corporate volume and self-funding rates. Please arrange a discussion with a training advisor to discover your most cost effective option.

Code Location Duration Price May Jun Jul Aug Sep Oct

and Virtual Classroom
5 Days $3,595

What Our Customers Say

The training was delivered with a high level of expertise and excellence. Instructor was highly knowledgeable.”

Technical Trainer, Aviat Networks

Overall the course was really good, the trainer really understood the material and was very approachable.”

Customer Training Manager, Aviat Networks

Excellent course, informative and well-paced.”

CSE, Cisco

Course was very well outlined. Topics were great and bridged many gaps.”

System Engineer, Cable & Wireless

An excellent intro to video encoding & MPEG transport streams - I would definitely recommend it.”

Broadcast Engineer, Cisco

Definitely an excellent intro. Left me interested in learning more.”

Broadcast Engineer, Eircom

Excellent training course with real examples and practical classroom demonstrations.”

Transport Designer, Orange

Instructor knowledge and experience was excellent.”

Solutions Engineer, Akamai

Excellent course, very clear and well organised. Course content delivery was very good.”

Assistant Engineer, Dhiraagu

Very informative and appropriate.”

Network Support Technician, BT

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