440-4106/06 – VoIP (VoIP)

Gurantor departmentDepartment of TelecommunicationsCredits5
Subject guarantorprof. Ing. Miroslav Vozňák, Ph.D.Subject version guarantorprof. Ing. Miroslav Vozňák, Ph.D.
Study levelundergraduate or graduateRequirementOptional
Study languageEnglish
Year of introduction2015/2016Year of cancellation
Intended for the facultiesFEIIntended for study typesFollow-up Master
Instruction secured by
LoginNameTuitorTeacher giving lectures
ORC0009 Ing. Lukáš Orčík
REZ106 Ing. Filip Řezáč, Ph.D.
SEV0097 Ing. Lukáš Ševčík
TOV020 Ing. Jaromír Továrek, Ph.D.
VOZ29 prof. Ing. Miroslav Vozňák, Ph.D.
Extent of instruction for forms of study
Form of studyWay of compl.Extent
Full-time Credit and Examination 2+3
Combined Credit and Examination 2+10

Subject aims expressed by acquired skills and competences

Understand the technology VoIP. Learning outcomes are set so that the students are able to identify tasks in the field of VoIP.

Teaching methods

Lectures
Tutorials
Experimental work in labs

Summary

This course is directed towards the students of study program Information and communication technology. The aim is to acquaint students with technologies and standards of voice transmission in IP network with communication protocols H.323, SIP, MGCP and with elements enabling an implementation of voice services in IP network. A significant part is focused on area of Quality of Service. Laboratory works are oriented on protocol analyzing and students can choose semestral project from three themes based on open source VoIP solution as Asterisk, GnuGK or OpenSER. Communication standards are been already formed with pursuit to network design with integrated service which are able to transfer a data, voice or video. The next generation networks are using in considerable amount these techniques which are called as Voice over IP and VoIP is the significant direction in next evolution of communications.

Compulsory literature:

M. Voznak, Voice over Internet Protocol, college book, VSB-TUO, 137 p., 2012 Lectures in Moodle

Recommended literature:

CAMP, K:IP Telephony Demistified, McGraw-Hill, 2003, New York, ISBN 0-07-140670-0. HARDY,W.: VoIP service quality, McGraw-Hill, 2003, New York, ISBN 0-07-141076-7. Sinnreich, H.:Internet Communications Using SIP, Wiley Computer Publishing, New York, 2001, ISBN 0-471-41399-2 Voznak, M.: Introduction to Communication Systems.Issued by VSB-Technical University of Ostrava, 121p., 2012.

Way of continuous check of knowledge in the course of semester

Conditions for credit: Student can obtain max. 40 points, during the semester he obtains points for lab works max. 15 p. and for semestral project max 25 p., there is required to get minimally 15 p.

E-learning

Další požadavky na studenta

Knowledge of computer networks are required

Prerequisities

Subject has no prerequisities.

Co-requisities

Subject has no co-requisities.

Subject syllabus:

Lectures: Real Time Protocol RTP, RTCP, SRTP, speech coding and decoding, speech bandwith requirements for RTP. Standard H.323, protocol model, basic elements - GK, TE, GW, MCU, Signaling H.225.0 RAS, Q.931 and H.245 Call models GRC and DRC, Fast Connect, H.245 tunelling, fax standard T.38 Open solution H.323, network design and configuration GnuGK. GW for PSTN networking, comparison of interfaces and capabilities - FXS, FXO, EM, ISDN PRI and BRI. SIP/SDP protocol, description of elements - User Agent, Registrar, Redirect and Proxy server, SIP methods a answers, RFC 3261, SDP protocol fro media description of SIP session. SIP headers parsing, transactions and dialogs, next methods not included in SIP core, offer/answer model, scenarios of media negotiations, using DNS record for IP telephony, ENUM. SIPp – SIP sessions generator, SIP/SDP grammar, practical SIP/SDP scenario with authentication. Asterisk, SW PBX, applications, dial plan, extensions, practical using SIP and IAX. SIP and IAX trunk, their application , security on SIP trunk, authorization of access on trunk, rules for modification of dialed umbers. Asterisk – advances services, Presence and Instant Messaging, calendars, practial using presence with Jabber. Kamailio, syntax, structure of configuration, modules, static routing, DB - interoperability, design and configuration, REGISTRAR modul, SIP NAT traversal, RTPPROXY, NATHELPER. Quality of IP telephony - MOS, PESQ, E-model and R-factor, fragmentation, packet losses, delay and jitter, network requirements Intserv, Diffserv). MGCP and Megaco/H.248, webRTC and new trends in IP telephony. Exercises: Codecs, RTP – introduction to the lab, software H.323 and SIP clients. W1 Introduction into H.323 – hardware H.323 and SIP clients. W2 Introduction into H.323 - H.323 analysis. W3 Asterisk introduction, diaplan and extensions + project assigment - 25 points. W9 Asterisk trunk and security. W10 Asterisk advances services. W11 Quality of service in IP telephony – consultation of the project. W13 Trends in IP telephony - webRTC,ENUM, best practices + discussion – project presentation. W14 Labs: GNuGK – H.225 and H.245 – rated exercise with maximum 4 points. W4 Gnugk trunk - rated exercise with maximum 2 points. W5 SIP - SIP signalization - rated exercise with maximum 3 points. W6 SIP - SIP header- rated exercise with maximum 3 points. W7 Sipp - rated exercise with maximum 3 points. W8 Kamailio – introduction into Kamailio + work on the project. W12 Projects: Semestral project, design of VoIP network with one of the open source solutions as GnuGK or Kamailio or Asterisk.

Conditions for subject completion

Full-time form (validity from: 2015/2016 Winter semester)
Task nameType of taskMax. number of points
(act. for subtasks)
Min. number of points
Credit and Examination Credit and Examination 100 (100) 51
        Credit Credit 40  15
        Examination Examination 60  11
Mandatory attendence parzicipation:

Show history
Combined form (validity from: 2015/2016 Winter semester)
Task nameType of taskMax. number of points
(act. for subtasks)
Min. number of points
Credit and Examination Credit and Examination 100 (100) 51
        Credit Credit 40  15
        Examination Examination 60  11
Mandatory attendence parzicipation:

Show history

Occurrence in study plans

Academic yearProgrammeField of studySpec.FormStudy language Tut. centreYearWSType of duty
2018/2019 (N2647) Information and Communication Technology (2612T025) Computer Science and Technology P English Ostrava 1 Optional study plan
2018/2019 (N2647) Information and Communication Technology (2612T025) Computer Science and Technology K English Ostrava 1 Optional study plan
2017/2018 (N2647) Information and Communication Technology (2612T025) Computer Science and Technology P English Ostrava 1 Optional study plan
2017/2018 (N2647) Information and Communication Technology (2612T025) Computer Science and Technology K English Ostrava 1 Optional study plan
2016/2017 (N2647) Information and Communication Technology (2612T025) Computer Science and Technology P English Ostrava 1 Optional study plan
2016/2017 (N2647) Information and Communication Technology (2612T025) Computer Science and Technology K English Ostrava 1 Optional study plan
2015/2016 (N2647) Information and Communication Technology (2612T025) Computer Science and Technology P English Ostrava 1 Optional study plan
2015/2016 (N2647) Information and Communication Technology (2612T025) Computer Science and Technology K English Ostrava 1 Optional study plan

Occurrence in special blocks

Block nameAcademic yearForm of studyStudy language YearWSType of blockBlock owner