Anthony Zuniga Castillo

LAN and Telephony Administrator

* Cisco Call Manager Administrator and support.
* Cisco Unity Connection Administrator and support.
* Cisco Emergency Responder Administrator and support.
* Cisco Attendant Console Standard and advanced support and administration.
* Microsoft Teams Administrator and support.
* Revolution Paging System Administrator and support.
* ZIRO Administrator and support.
* Project Management.
* LAN Administrator.

• Telecommunications & Collaboration Engineer with 3+ years of experience specializing in enterprise unified communications solutions. Led the end-to-end migration of 500+ users from Skype for Business to Microsoft Teams across multinational sites (Costa Rica/Panama), implementing Direct Routing with AudioCodes SBC (certified) and troubleshooting complex voice/video issues. Managed hybrid environments integrating Microsoft Teams with Xorcom IP-PBX systems and Snom wireless phones, while optimizing performance through QoS policies and Aruba ClearPass for secure network access. ITIL v4 certified with proven ability to document solutions and improve SLAs in technical support operations.
• Key Technologies: Microsoft Teams (Direct Routing), AudioCodes SBC, Xorcom PBX, Aruba ClearPass, SIP/RTP, Clobba Analytics