Good class notes and great
examples.
examples.
Mr. Ghaffar Masood, Mobilink Pakistan
Course will be very useful
in my daily work.
in my daily work.
Mr. Leopoldino Ferreira, Unitel Angola
The course covers all the impacted
areas.
areas.
Ms. Gratia Scanteie, Vodafone, RO
Knowledge about GSM switching and signalling come together to a clear picture.
Ms. Anette Chale, mCel Mozambique
Training provides useful methods
to analyze the real protocols.
to analyze the real protocols.
Mr. Seema Karn, NCell Nepal
Regardless of technology I received theoretical and practical answers.
Mr. Kosta Pribiæ, T-Mobile Croatia
Very well organized training
programmes.
programmes.
Mr. Mihnea Teodorescu, Cosmote, RO
Everyone gets individual attention
of the trainer.
of the trainer.
Ms. Inga Tomsone, Tele2 Latvia
Great teacher with deep knowledge and experience.
Mr. Philippe Wrzecionek, TATA
Very effective training
methods.
methods.
Ms. Erjona Xhemali, AMC Albania
Very clear
explanations.
explanations.
Ms. Tatyana Krasyuk, Life Ukraine
Big professionalism and quality
of the trainer.
of the trainer.
Mr. Gagik Shatveryan, Vivacell
The whole course was
very valuable.
very valuable.
Mr. Sayyid Ali, Dhiraagu Maldives
Excellent trainer's knowledge
and openness for communication.
and openness for communication.
Mr. Dmitrii Kropotov, Tele2 Russia
The training is completely
excellent.
excellent.
Mr. Philipp Korostelev, Beeline Moscow
Experienced trainer.
Excellent descriptions.
Excellent descriptions.
Mr. Ahmad Doar, Mobily, KSA
Trainer is open for comments and
discussion.
discussion.
Ms. Natalya Nerubenko, Life Ukraine
Unique training covering the most
important areas of my work.
important areas of my work.
Mr. Eldar Mursaqulov, Azercell
Seminar entirely for Telecommunication operators. A lot of issues covered.
Ms. Pinelopi Tragoudara, Vodafone GR
Trainer adapted to the expectations
of the audience.
of the audience.
Mr. Antoine Blanchet, Monaco Telecom
I feel like the trainer is the best professor and mentor one can have.
Ms. Ledia Meici, AMC Albania
I received a lot of useful information
which I use in my work every day.
which I use in my work every day.
Ms. Viktoriya Gusarova, Beeline RU
I am very impressed with the trainer's knowledge and experience.
Mr. Mouin Al Saghir, Vivacell
Many different people form different operators can share here problems & ideas.
Mr. Omar El-Fiky, Vodafone Egypt
More then an excellent level
of the course.
of the course.
Ms. Inessa Mijiferjyan, Vivacell
Trainer was able to answer practical questions.
Mr. Daniel Krolikowski, Play Poland
Training was above
expectations!
expectations!
Mr. Ariel Haxhiu, Eagle Mobile, AL
Trainer understands local market experience.
Mr. Andrew Sweetman, Wataniya
Trainer's knowledge
is the best.
is the best.
Mr. Daniel Bubu, Cosmote Romania
A lot of useful materials
and knowledge.
and knowledge.
Mr. Shukhrat Khaydar, UCell
Amazing, more then excellent, audience-oriented trainer.
Mr. Evgeniy Dmitriev, Astelit Ukraine
Trainers have passion to teach & impart knowledge.
Mr. Kanchan Chitrakar, Ncell Nepal
The best training
ever.
ever.
Mr. Timur Zagretdinov, MTT Russia
Excellent
exercises!
exercises!
Mr. Muhammad Ali, Mobilink Pakistan
Excellent course and
instructor.
instructor.
Mr. Nikolay Suetin, Beeline Russia
Excellent methodology of teaching. Simple and easy to understand training.
Mr. Arben Shabani, PTK Kosovo
Trainer is capable to answer all the questions.
Ms. Ana Gheorghe, Vodafone RO
Good direct connection between course material and real problems.
Mr. Alex Konstantopoulos, Cosmote, GR
Trainer understands local market experience.
Mr. Andrew Sweetman, Wataniya
Really practical and very fruitful
training.
training.
Mr. Niroj Raya, NCell Nepal
Good logical structure of the course and way of explanation.
Ms. Elena Shevtsova, Beeline, KZ
Perfect course.
Mr. Arseniy Mazanik, Beeline Russia
Experienced trainer. Real cases with references to recommendations.
Mr. David Curkan, T-Mobile Croatia
I can proudly recommend
these courses for others as well.
these courses for others as well.
Mr. Tarvo Jammer, Elisa Estonia
Course covers all important issues and presents with relevant examples.
Mr. Mohamed Kamel, Vodafone Egypt
Overwhelming knowledge and expertise. Interactive and enjoyable learning.
Mr. Ashish Shrestha, NCell Nepal
Highly professional trainer with a big practical experience. Friendly and opened.
Ms. Olga Rudnicka, Tele2 Latvia
A good approach
to a complex problems.
to a complex problems.
Ms. Horia Catrinoiu, Vodafone RO
Deep and detailed topic
analysis.
analysis.
Mr. Mohamed Sabry, Vodafone Egypt
The training exceeded
my expectations.
my expectations.
Ms. Irida Gjashta, AMC Albania
Business Intelligence
Roll-out & Auditing
LTE/EPS & IMS
UMTS, WCDMA & HSPA
GSM & UMTS Signalling
Telecom Basics
VoIP Technology
| Duration: | 4 days |
| Available as: | in-company and public course |
| Target audience: | engineers |
| Public course: |
Who Should Attend?
The course is intended to anyone who needs to broaden knowledge about VoIP technology. This 3-days long session gives deep understanding and practical knowledge of VoIP technology.
Course Scope
- VoIP Background.
- Why VoIP – benefits and problems,
- Circuit versus packet switching for real-time services,
- Voice services quality and measurement standards (MOS, etc.),
- Real-time services in ATM, Frame Relay and IP networks (RTP/RTCP),
- Voice compression (linear prediction, G.72x codecs) and packetization,
- VoIP signaling overview (call control, media negotiations, mobility management),
- VoIP standards evolution,
- H.32x standards overview,
- H.248 overview,
- SIP overview: history, standard evolution.
- H.323 fundamentals.
- H.323 protocol family overview,
- H.323 architecture; functional entities description,
- H.323 call stages,
- H.225 RAS (Registration, Admission, Status),
- H.225 CC (Call Controll),
- H.245 Control Protocol for Multimedia decription.
- SIP fundamentals.
- SIP main architecture,
- SIP components (servers and clients) and their functions: SIP user agents (AU client and server),
- SIP servers: proxy (statefull and stateless), redirect, registrar,
- SIP location servers,
- SIP gateways,
- SIP message structure,
- SIP requests and response codes,
- SIP supporting IETF protocols (SAP, SDP),
- SIP sessions: session setup, proxying and redirecting requests, address resolution, media negotiation via SDP,
- SIP security,
- General SIP message flow examples.
- Transport protocols in VoIP networks.
- IP4 vs. IP6,
- RTP & RTCP protocols,
- Secured media transport – SRTP protocol,
- Media streaming – RTSP protocol,
- Voice coding aspects.
- Basic information about speech; narrowband coding,
- Speech codecs; basic facts, speech compression,
- PCM, ADPCM, CELP codecs. Key differentiators for codecs used in VoIP.
- Quality of Service in VoIP
- Quality of voice and quality of service expectations,
- Media quality; key facts
- Speech QoS – sources of network impairments,
- QoS measure: MOS. PESQ model, E model
- QoS testing methods.
Course Objectives
To understand new VoIP technology, architectures used to offer services based on VoIP and problems coming from deploying of real-time service on packet network.
Pre-requisites
There are no prerequisites to attend the course, but basic knowledge about IP would be beneficial.
Training Structure
Four days training divided into logical sessions.
Methodology
Instructor led training.
