Lectures:
IP network fundamentals,protocol model TCP/IP, addressing in IP network, Real Time Protocol.
Encoding and decoding in various speech codecs, RTP bandwith calculation.
H.323 standard, protocol model, basic elements - GK, TE, GW, MCU.
H.225.0 RAS, Q.931 and H.245 signalling, type of messages, connection model GRC and DRC.
H.323 versions and their differents, Fast Connect method, H.245 tunelling, T.38 fax protocol.
Gateway for interconnection with PSTN, comparision of interfaces and possibilities FXS, FXO, EM, ISDN PRI and BRI.
Open solution H.323, network design and configuration GnuGK.
SIP/SDP protocol, description of elements - User Agent, Registrar, Redirect and Proxy server.
SIP requests and responses, message description, RFC 3261.
SIP Express Router.
Asterisk, SW PBX, protocol translation IAX2, SIP and H.323.
Quality of IP telephony - MOS, PESQ, E-model and R-factor, packet loss, delay and jitter.
QoS - Intserv, Diffserv, fragmentation, congestion control and queuing.
Communication protocol MGCP and Megaco/H.248.
Exercises:
Orientation in lab.
Configuration of SW and HW IP phones.
Traffic's monitoring in network, packet sniffers.
Laboratories:
Theme no.1., Basic analyzing of H.323 connection.
Theme no.2., H.245 procedures.
Theme no.3, RAS and basic Call Q.931 analyzing
Cisco VoGW, configuration.
Project GnuGK, introduction to configuration.
Project SER, introduction to configuration.
Project Asterisk, introduction to configuration.
Theme no.4, Analyzing SIP methods and responses, call flow.
Theme no.5, Parsing SIP headers.
Theme no.6, Analyzing of voice quality.
Projects:
Semestral project, design of VoIP network with one of the open source solutions as GnuGK or SER or Asterisk.
IP network fundamentals,protocol model TCP/IP, addressing in IP network, Real Time Protocol.
Encoding and decoding in various speech codecs, RTP bandwith calculation.
H.323 standard, protocol model, basic elements - GK, TE, GW, MCU.
H.225.0 RAS, Q.931 and H.245 signalling, type of messages, connection model GRC and DRC.
H.323 versions and their differents, Fast Connect method, H.245 tunelling, T.38 fax protocol.
Gateway for interconnection with PSTN, comparision of interfaces and possibilities FXS, FXO, EM, ISDN PRI and BRI.
Open solution H.323, network design and configuration GnuGK.
SIP/SDP protocol, description of elements - User Agent, Registrar, Redirect and Proxy server.
SIP requests and responses, message description, RFC 3261.
SIP Express Router.
Asterisk, SW PBX, protocol translation IAX2, SIP and H.323.
Quality of IP telephony - MOS, PESQ, E-model and R-factor, packet loss, delay and jitter.
QoS - Intserv, Diffserv, fragmentation, congestion control and queuing.
Communication protocol MGCP and Megaco/H.248.
Exercises:
Orientation in lab.
Configuration of SW and HW IP phones.
Traffic's monitoring in network, packet sniffers.
Laboratories:
Theme no.1., Basic analyzing of H.323 connection.
Theme no.2., H.245 procedures.
Theme no.3, RAS and basic Call Q.931 analyzing
Cisco VoGW, configuration.
Project GnuGK, introduction to configuration.
Project SER, introduction to configuration.
Project Asterisk, introduction to configuration.
Theme no.4, Analyzing SIP methods and responses, call flow.
Theme no.5, Parsing SIP headers.
Theme no.6, Analyzing of voice quality.
Projects:
Semestral project, design of VoIP network with one of the open source solutions as GnuGK or SER or Asterisk.