About the Reviewers

Bogdan-Andrei Iancu is a part of the new generation of IT people with dual nature—both technical and business. He is a co-founder of SER and OpenSER projects and also founder and CEO of Voice System SRL, a "know-how" VoIP/OpenSER company.

Born in 1978 in Romania, he received in 2001 the Master Degree in Computer Science at University "Politehnica" Bucharest. For the next 4 years, his research work at Fraunhofer Fokus Research Institute for Open Communication, Berlin is sustained by hands-on experience in VoIP/SIP area as co-founder (in 2002) and main developer of the Open Source project "SIP Express Router".

In 2004, Bogdan-Andrei Iancu starts his own enterprise—Voice System—dedicated to designing, implementing, and deploying VoIP platforms. Focusing on advanced service and dynamic routing together with scalability and security, in 2005 he (along with other members of Voice System's team) co-founds the OpenSER public project as the next step in VoIP enhancement.

For the last 4 years, Bogdan Iancu concentrated the Voice System energy in a dual head direction: continue effort and contribution to the Open Source "OpenSER" project as code, advertising, management, and sponsorship; developing industry proofed VoIP platforms and solutions from ITSPs/ISPs to large carriers and telcos.

Voice System team grouped over the years more 7 core and main developers for the "OpenSER" project, accumulating a large and comprehensive knowledge on it. The works goes hand in hand with research and standardization especially in new SIP related domains like presence, where Anca-Maria Vamanu provided a full presence implementation for the project.

Voice System, as major OpenSER sustainer, is looking in how to share valuable knowledge about OpenSER with the rest of community via several ways: training courses, documentation, and starting from now, with helping the emergency of OpenSER related books.

Daniel-Constantin Mierla is co-founder of OpenSER SIP Server project and CEO of ASIPTO, a company focused on VoIP and OpenSER-based services. His experience with SIP and VoIP started in the beginning of 2002, since then authoring many online tutorials about OpenSER, including "OpenSER Devel Guide", "OPENSER Core Cookbook", "OpenSER Pseudo-variables and transformations". He participates periodically to VoIP events, speaking about OpenSER and VoIP. Since 2005, when OpenSER started, he is member of the management board of the project.