Ronald Schlager


Ronald Schlager joined the market of communications technologies in 1980.

10 years of experience in design and development of hardware and software of computer and network interfaces as well as packet switching systems of network operators.

He is owner of the trainings and consulting company schlager communications services GmbH (

Since 1988 Ronald Schlager helps his partners to be successful in their job by offering knowledge transfer services in the fields of communications technologies, protocols and their application. He organizes fully neutral and independent seminars and is trainer for decision makers, CIOs, system integrators and specialists.

Ronald Schlager is independent consultant and planner of communications solutions.

He publishes seminar handouts and other materials as print on demand books, electronic eBooks or Microsoft PowerPoint slides.

Smashwords Interview

What's the story behind your latest book?
In our communications technology world there are so many acronyms. It is hard to remember different terms. Many people use such abbreviations without knowing the real words behind. I wanted to bring light into the darkness and collected many abbreviations.
What motivated you to become an indie author?
The main reason is that I am able to help a lot of people to be successful in their job or their life. To reach a greater audience than during a classroom seminar gives me the opportunity to identify the demand of persons all over the world, learn to understand their problems and trying to help them independently. I am used to work independent as trainer and consultant in the fields of communications technologies. Everything I do is vendor independent. I like to live mobile and independent. To write a book is very exciting and a very creative process.
Read more of this interview.

Where to find Ronald Schlager online

Where to buy in print


Das OSI-Modell - einfach beschrieben
Price: $4.49 USD. Words: 5,880. Language: German. Published: April 9, 2015. Categories: Nonfiction » Computers and Internet » Networking / network protocols, Nonfiction » Computers and Internet » Data transmission systems / general
Das Buch erklärt Ihnen auf einfache Weise das Modell, das auf der ganzen Welt zur Beschreibung von Kommunikationsfunktionen und -protokollen herangezogen wird. Es behandelt grundlegende Begriffe, Aufgaben, Funktionen und Dienste der 7 Schichten des OSI-Modells auf einfache Art. Das Buch ordnet die Aufgaben von Repeaters, Bridges, Switches und Routers den entsprechenden Schichten zu.
IPv4 and IPv6 Addresses - An Introduction
Price: $9.90 USD. Words: 15,340. Language: English. Published: January 29, 2015. Categories: Nonfiction » Computers and Internet » Internet, Nonfiction » Computers and Internet » Networking
The book gives an introduction in the Internet Protocol addresses as they are specified for IPv4 and IPv6. The emphasis build the different IPv4 and IPv6 address types, their application and management. The book supports you in your understanding of the different concepts and in your planning.
Auswahl von Enterprise-VoIP-Systemen
Price: $25.00 USD. Words: 13,740. Language: German. Published: August 14, 2014. Categories: Nonfiction » Computers and Internet » Buyer’s guides, Nonfiction » Computers and Internet » Enterprise applications / collaboration software
Das Buch hilft Ihnen als Entscheidungsträger, Consultant oder Planer von Kommunikationslösungen bei der Auswahl von Enterprise-VoIP-Lösungen. Es bietet Ihnen viele praktische Tipps für die herstellerneutrale Definition von technischen Anforderungen an neueste Voice over IP-Lösungen und hilft Ihnen bei der Auswahl der passendsten Lösung für Ihr Unternehmen.
Einsparungspotentiale der IP-Telefonie
Price: $9.90 USD. Words: 4,970. Language: German. Published: July 16, 2014. Categories: Nonfiction » Computers and Internet » Buyer’s guides, Nonfiction » Engineering, trades, and technology » Telecommunications
Das Buch hilft Ihnen als Entscheidungsträger, Verkäufer, Consultant oder Planer von Kommunikationslösungen einerseits Kosten in Zusammenhang mit der Einführung moderner IP-Telefonie- (Voice over IP-) Lösungen zu erkennen und andererseits, vor allem wichtig, die verschiedenen Einsparungspotentiale für Ihr Unternehmen zu nutzen.
Corporate Telephony Strategies for Enterprise Customers and Organizations
Price: $9.90 USD. Words: 14,350. Language: English. Published: June 17, 2014. Categories: Nonfiction » Business & Economics » Decision-making & problem solving, Nonfiction » Computers and Internet » Buyer’s guides
This (e)book gives you an overview of different corporate telephony strategies for your enterprise or organization to modernize your telephony systems and to identify selection criteria. Different solution variations and migration scenarios from traditional telephony solutions to VoIP are explained. Different strategies for servers, end devices and network prerequisites are covered.
Einfache Sicherheit für Smartphones und Tablets
Price: $0.99 USD. Words: 6,200. Language: German. Published: June 3, 2014. Categories: Nonfiction » Computers and Internet » Security
Das Buch hilft Ihnen als privater oder firmenmäßiger Nutzer mobiler Geräte wie Smartphones oder Tablet Computers, Ihre Geräte und Daten sowohl physisch wie auch logisch zu schützen.
Protect your Smartphone and Tablet
Price: $0.99 USD. Words: 5,480. Language: English. Published: May 26, 2014. Categories: Nonfiction » Computers and Internet » Security
The (e)book offers valuable hints for you as a private or corporate user of mobile devices like smartphones or tablet computers to protect your devices both physically and logically.

Ronald Schlager's tag cloud

2002    android security    anwendungsschicht    app security    app store    bb security    bring your own device    business voip    byod    corporate telephony    data protection    data security    datensicherungsschicht    device security    enterprise telephony    enterprise voip    fe80    internet protocol    investition telefonie    ios security    ip address    ip prefix    ip structure    ip telefonie    ipsec    ipv4    ipv6    mobile app    mobile app management    mobile content    mobile control    mobile data    mobile data security    mobile daten    mobile device    mobile device management    mobile enterprise    mobile enterprise management    mobile privacy    mobile security    mobile sicherheit    mobility    netzwerkschicht    online security    open system    osi    osi modell    paketschicht    protect privacy    protect smartphone    protect tablet    protokoll    remote security    samsung security    secure network    sip einsparung    sip kosten    sitzungsschicht    smartphone    smartphone security    subnet mask    tablet    tablet security    telefonie einsparungen    telefonie einsparungspotential    telefonie kostenreduktion    telephony strategy    transportschicht    trusted app    trusted app store    trusted device    trusted network    unified communications    unternehmenstelefonie    voice over ip    voip    voip anforderungen    voip auswahl    voip erfahrungen    voip funktionen    voip kosten    voip lastenheft    voip management    voip produkte    voip projekt    vpn