PV235 Basics of IP telephony

Faculty of Informatics
Spring 2016
Extent and Intensity
2/0. 2 credit(s) (plus extra credits for completion). Type of Completion: zk (examination).
Teacher(s)
doc. Ing. Jaroslav Dočkal, CSc. (lecturer)
doc. RNDr. Eva Hladká, Ph.D. (lecturer)
Guaranteed by
doc. RNDr. Eva Hladká, Ph.D.
Department of Computer Systems and Communications – Faculty of Informatics
Contact Person: doc. Ing. Jaroslav Dočkal, CSc.
Supplier department: Department of Computer Systems and Communications – Faculty of Informatics
Timetable
Mon 15:00–16:50 A318
Prerequisites (in Czech)
PB156 Computer Networks
Course Enrolment Limitations
The course is also offered to the students of the fields other than those the course is directly associated with.
The capacity limit for the course is 100 student(s).
Current registration and enrolment status: enrolled: 0/100, only registered: 0/100, only registered with preference (fields directly associated with the programme): 0/100
fields of study / plans the course is directly associated with
Course objectives
The aim of the course Fundamentals of IP telephony is to provide a broad overview of the issues-based telephony using IP. In the course of this subject, students will be familiar with the principles and methods of IP telephony and a wide range of codecs, protocols and methods to effectively provide advanced telephony services. Particular attention will be paid numbering plans, ensuring the necessary quality of service for IP telephony, diagnosing problems in IP telephony and the ability to manage them and ensure the security of telephone calls within the network infrastructure.

After completion of study students will:
• know the specifics of IP telephony and voice processing procedures in IP telephony
• be able to competently evaluate classical and modern codecs, • be knowledgeable in a wide range of protocols associated with IP telephony,
• keep track of the basic types and techniques and methods of calling voice port configuration on network elements
• know the mechanisms of call signaling over digital voice ports
• know how to use DNS for IP telephony
• know how configure up scalable dial and numbering plans, address number portability
• know how to read and write regular expressions voice translation rules
• know how to monitor the quality of service (QoS) of data networks in terms of VoIP network elements
• know ways of measuring quality of service, be able to use the E-model
• be able to diagnose problems in IP telephony networks and take appropriate action
• know the principles of telephone calls using the best-known software tools
• able to deal with alternative, overflow and backup routing in telephone networks
• know basic IP telephony security risks, methods of attacks on its infrastructure and currently used measures for their protection
Syllabus
  • Digitization of traditional voice telephony
  • Development from traditional telephony to IP telephony
  • Principles of Voice processing over IP telephony
  • Types of codecs and their characteristics, the path to modern codecs
  • data transfer protocols - RTP, RTCP, cRTP, SRTP, ZRTP and SCTP
  • Call types and configuration of voice ports on network elements
  • The H.323 as a complex other protocols
  • protocols H.225, H.245 and RAS
  • Examples of gatekeeper and gateway configuration
  • SIP – Architecture and associated security issues
  • Configuring SIP Gateways
  • Using ISDN to IP telephony
  • Call Signaling over Digital Voice Ports
  • Basic techniques of call (call waiting, call forwarding, forking, forwarding, holding, PRACK etc.)
  • Use DNS for IP Telephony, ENUM
  • Dial and numbering plans, number portability
  • Regular expressions voice translation rules
  • Monitoring Quality of Service (QoS) of data in VoIP networks
  • Priorities, policing, sharping, response to overload lines, setting speed limits for telephone traffic
  • Measuring the quality of service, E-model
  • Diagnosing problems in the IP telephony network
  • Management of telephone calls using software tool CCM and SCCP protocol
  • Management of telephone calls using software tool Asterisk and IAX protocol
  • An alternative, overflow and backup routing in telephone networks
  • Routing and handling emergency calls
  • Attacks on the security of IP telephony, the methods of securing the network infrastructure
Teaching methods
Lectures, reading of recommended literature, no drills.
Assessment methods
In the mid-semester examination papers of curriculum, especially the basic concepts and protocols in IP telephony, the result of which counts 20% of the final mark. Final written exam counts 80% of the final evaluation, the written test consists of 10 questions, is it possible to get 100 points. To pass the course it is necessary to have a basic knowledge of all three areas, namely QoS and its measurement in IP telephony, diagnosing problems in IP telephony and IP telephony security issues. The subject is as follows A 100% - 90% B 89% - 80% C 79% - 70%, D 69% - 60%, E 59% - 55%.
Language of instruction
Czech
Further comments (probably available only in Czech)
Study Materials
The course is taught annually.
The course is also listed under the following terms Spring 2011, Spring 2012, Spring 2013, Spring 2014, Spring 2015, Spring 2017, Spring 2018, Spring 2019.
  • Enrolment Statistics (Spring 2016, recent)
  • Permalink: https://is.muni.cz/course/fi/spring2016/PV235