Required Skill sets: AT&T VoIP, Zoom Phone and Avaya VOIP and ACD, Call Routing, Voice network support services: QoS, DHCP, DNS, 802.1x, SIP/CTI integration to 3rd party systems IPC Networking Sevices, Oracle SBC, AudioCodes SBC, carrier VoIP and IP Toll Free configuration and troubleshooting. VoIP System Engineer needs 5+ years working experience with a broad range of hardware, networking and telephony solution.