All Services Programming & Development VoIP/Phone systems $20/hr · Starting at $25 VoIP engineering and programming . About $20/hr · Ongoing Download Resume VoIP engineering and programming . Skills & Expertise AsteriskElastixEngineeringFreepbxProgrammingSipVoIP 0 Reviews This Freelancer has not received any feedback. Browse Similar Freelance Experts Computer ProgrammersSQL DevelopersDatabase AdministratorsArduino DevelopersTransmission Control Protocol (TCP) ServicesRaspberry Pi ProgrammersHome Automation DesignersSystem AdministratorsMySQL DevelopersSecurity ConsultantsPython DevelopersDatabase DesignersNetwork AdministratorsVoIP ServicesDNS ExpertsLinux System AdministratorsPHP Developers