IT-Systemadministrator (m/w/d) – VoIP und Telefonie
Core
Operate and administer VoIP and telephony systems, ensuring quality and availability of communication services while migrating to IP-based solutions.
Role type
IT System Administrator (VoIP & Telephony)
Builds
Unified Communications solutions, IP-based telephony infrastructure
Domain
Automation technology / Telecommunications
Required skills
VoIP and SIP system administration, IP telephony configuration, network prioritization, VLAN configuration, firewall management, IVR and voicemail setup, SIP trunk monitoring, quality of service (QoS) analysis, migration of legacy telephony systems
Preferred skills
Experience with cloud telephony, troubleshooting communication services, collaboration with network and security teams
Technologies
VoIP, SIP, Unified Communications, IP telephony, SIP trunks, IVR, voicemail
Responsibilities
Configure call numbers, permissions, and reachability functions; manage users, groups, and call forwarding rules; monitor speech quality, latency, jitter, and packet loss; introduce new telephony solutions and support migration to IP-based systems; collaborate with network and security teams on VLANs and secure access
Seniority
Mid-level, hands-on IC
