Basic working knowledge and experience in the installation, maintenance and administration of telephony systems, voicemail, VoIP infrastructure, SIP proxies, session border controllers, media servers, SIP trunking), IVR, programming or scripting, healthcare telecommunications solutions and unified communications. Supporting the most current version protocols including but not limited to: SIP, MGCP, H323, Analog VG3xxxx preferred as well as set up and troubleshooting, ISRs 44xx preferred, FXO and FXS set up and troubleshooting.