About the Reviewers

Elvin E. Casem has provided creative, innovative, and state-of-the-art web solutions and IT services. He works as an IT consultant and university instructor at Don Mariano Marcos Memorial State University. He is the CEO of Evenly Ten Web Solutions, with extensive experience in computer applications and programming management, IT systems and infrastructure, cloud computing, web development, resource management, and customer relationship management. Elvin has worked with various information and communication technology companies, such as the IT Group, Inc. and Click Dolphin LLP. He also implements Google Apps for Education for universities and campuses in Region I, the Philippines. Elvin's clients over the last 8 years include The Asset Quest LLP, Eton Properties, Pilipinas Shell, MeadJohnson Philippines, ABS-CBN Investor Relations, and Stores Specialist, among others. He has made many presentations for students and professionals.

Muhammad Zeeshan Munir is a freelance ICT consultant and solution architect. Currently, he is working as an infrastructure consultant at Qatar Computing and Research Institute (QCRI), Qatar Foundation, in Qatar. There, he is responsible for the technology and architecture of public and private clouds and management of the research infrastructure (based on thousands of CPU cores, GPUs, co-processors, and Pita bytes of storage). Zeeshan began his career as a system administrator in 2004, and since then, he has acquired and executed many successful projects in multi-million-dollar ICT industries. With more than 10 years of experience, he provides ICT consultancy services for different clients in Europe. He regularly contributes to different wikis and produces various video tutorials, mostly about technologies such as VMWare products, Zimbra E-mail Services, OpenStack, and Red Hat Linux. These can be found at http://zee.linxsol.com/system-administration. In his free time, he likes to travel, and he speaks English, Urdu, Punjabi, and Italian.

Bernard L. Samontanes has 18 years of experience in the ICT industry and has taken up multiple roles from Manila to Riyadh. He possesses a mixed skill set that spans technical support, software engineering, and systems and network administration, security, and infrastructure management. He started programming using Turbo Pascal and then used Turbo C/C++. He has been interested in database application development using FoxPro, Visual Dbase, and Visual Basic. At present, Bernard enjoys coding using C#, MySQL, and PHP for his software development projects, which are mainly in POS, unified messaging solutions (e-mail, IVR, SMS, MMS, and GPRS), and Asterisk integrations.

Bernard is currently employed as the infrastructure manager (POS) for Int'ltec SkyBand, where he oversees network and software development for POS projects. He has also implemented Elastix for POS call center operations and is planning to roll out a full Asterisk-based automated attendant and IVR for the entire company.