The Intelligent Network Changing the face of telecommunication

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The Intelligent Network Changing the face of
telecommunication

• Author Robrock, R.B., II
• This paper appears in Proceedings of the IEEE
• Srihari Atluri

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Abstract

• Introduction to the network nodes and operating
  systems that are the major components of the
  intelligent network.

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Purpose

• This paper will help me in understanding the
  history and current role of IN in
  telecommunications, and how to look at the future
  role of IN.

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Calling card services

• TSPS- Traffic service position system
• When customer dials, the call goes to
  TSPS(operator). TSPS launches a query to NCP to
  determine how to prompt the customer to enter a
  1digit calling card number
• TSPS launches a query to BVA to verify the
  calling card number
• OST functionality is eliminated now a days.

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LEC Alternate Billing Services

• ABS is an umbrella title that encompasses calling
  card service, collect calling, and bill to third
  number calling.

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LEC ABS
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Private Virtual Networks

• PVNs make use of the public telephone network,
  but by means of the software control, make that
  network appear to have the characteristics of a
  private network.
• A PVN serves a closed user group, and a caller
  requires authorization to get on the network.
  Thus screening is performed for originating calls

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Data and broadband services
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Data and broadband services-2

• The multimedia SCP The Service Control Point
  can provide authorization, address translation,
  and carrier identification functions to support
  data and broadband services as well as voice
  services

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Data and broadband services -3
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The CCS7 Network
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The CCS7 Network -2
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The CCS7 Network 3
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The CCS7 Network 4
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Elements of the Intelligent Networks

• Service Switching Points (SSP)
• Signal Transfer Points (STP)
• Service Control Points (SCP)
• Service Maintenance System(SMS)
• DataBaseAdministration System(DBAS)

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Service Switching Points

• SSPs are stored program controls that equipped to
  interface with CCS7 signaling network.
• These switches contain service logic required to
  intercept that require special handlingand send
  queries to centralized databases in order to
  obtain required call handling information
• SSPs use triggers such as seizure on line, prefix
  digits or address digits to recognize calls for
  special handling by the IN

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Signal Transfer Point

• STPs are high-capacity, very reliable packet
  switches that transport signal messages between
  nodes such as switches and SCPs.
• STPs perform message routing functions. They
  perform a great deal of protocol processing, and
  route a high volume of messages through their
  links.

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The SEAS System

• Provides operational and administrative support
  for STPs
• It has the routing information
• It also acts as a memory administration system
  and used to update routing information
• It collects surveillance data for the purpose of
  network management

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Service Control Point

• The SCP is the main engine of the IN
• It is an online, fault-tolerant, transaction
  processing data base which provides call handling
  information in response to network quires
• A new software or some new memory can be added to
  the in-service SCP with out disturbing the
  service.

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Architecture of SCP software
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Architecture of SCP software-2

• Service Network Interface consists of the System
  7 protocol software MTP, SCCP, and TCAP, or
  equivalent for the X.25 protocol.
• Support System Interface contains the BX.25
  protocol software as well as the link recovery
  software for the interface with the Service
  Management System.
• Maintenance and Operations provides a
  contemporary craftsman interface including colors
  and graphics

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Architecture of SCP software-3

• Node administration contains administrative
  tables and measuring data, etc.
• Node Manager contains faulty recovery and
  diagnostic software. It is used to startup,
  shutdown and to support growth of the system
• It is used to detect a problem, and then go
  through an escalating sequence of recovery
  actions until that problem is cleared

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Service Management System