@RonaldSchlager ranked #23 in Onalytica´s List "Unified Communications": Top 100 Influencers and Brands



Books and Courseware

OSI Model simply explained
The OSI Model Tutorial
Mobile Office Technology
Mobile Device Integration
IPv6 Details
IPv6 Security
IPv4 and IPv6 Addresses
Telephony Strategies
From ISDN to SIP
Selecting Mobile Device Management Systems
VoIP Technology Part 1
Coverpage SIP
Fundamentals of LANs
Basics in Data Communications
Simple Security for Smartphone and Tablet


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Recent Posts


What is Voice over WLAN (VoWLAN)?

Many companies have planned to use Voice over WLAN. What is VoWLAN? What should you consider? The following article describes basic selection criteria.

Fax Printer Scanner

Integrate Fax Services into IP Networks

Fax usage decreases from year to year. More and more companies are uninstalling their fax infrastructure. Other companies replace pure fax machines by so-called…

Selecting Video Conferencing Solutions

“Selecting Video Conferencing Solutions” – New Book Launched

The newly published book “Selecting Video Conferencing Solutions” helps you to define requirements and select modern video conferencing solutions for your company.