2 customer service English-speaking jobs in Mödling

, and basic knowledge of Linux systems. • Communication & Ownership: Strong communication skills in customer-facing ... , call setup failures, interconnect issues) to ensure high service availability. • Signaling & Interconnect ... . • Incident Management & Troubleshooting: Investigate and resolve voice service issues (e.g., SIP signaling ... Perform system upgrades and configuration changes while monitoring KPIs and improving overall voice service ... SS7/MAP/ISUP) and support roaming as well as inter-operator voice connectivity. • Change Management & Service

deployments on OpenStack/Kubernetes environments and participate in on-call rotations to ensure 24/7 service ... Management & Troubleshooting: Analyze and resolve complex network issues (e.g., GTP, Diameter) to ensure service