Job Summary (List Format) Senior Collaboration & Security Engineer
- Design implement and maintain Cisco Collaboration solutions (CUCM Webex Unity IM&P Expressway UCCX voice gateways etc.).
- Configure and manage dial plans SIP trunks route patterns number translations and calling search spaces.
- Support and troubleshoot Cisco endpoints including IP Phones ATA and Webex devices.
- Integrate PSTN connectivity via local gateways cloud connect or SIP trunks.
- Perform upgrades migrations (on-prem to cloud) and system expansions for collaboration systems.
- Monitor and resolve issues related to call quality latency jitter packet loss and media performance.
- Implement and manage Cisco security solutions (Firepower ASA Fortigate SecureX Umbrella ISE Duo).
- Ensure secure collaboration by encrypting voice traffic (SRTP) configuring SIP TLS and securing SIP trunks and WebRTC.
- Configure firewalls NAT ACLs and segmentation for voice/video traffic security.<...