I am searching for:
Consultations,projecting,realization of projects,programming for custom specific needs based on Open Source.
Whole VoIP solutions (public PBX, corporate PBX, Call Center, Recordings, Billing, SMS, Data collection and distribution, custom specific solutions), Planing and realization of projects, Programing Management, Project Management.
Everything you want to know about VoIP and another Open Source solutions for every possible situation. Linux, Android, iOS, Windows Mobile are operating systems I know excellent.