All Services Programming & Development sip, asterisk $50/hr · Starting at $100 More than 30 Asterisk servers under administrating, more than 10 maded VoIP servers from zero. IVR, Backup, voice recognition, dialplans, call recording, etc. About $50/hr · Ongoing Download Resume More than 30 Asterisk servers under administrating, more than 10 maded VoIP servers from zero. IVR, Backup, voice recognition, dialplans, call recording, etc. Skills & Expertise AsteriskSession Initiation Protocol (SIP)VoIP 0 Reviews This Freelancer has not received any feedback. Browse Similar Freelance Experts VoIP Services