Senior Consulting Engineer for VoIP, Collaboration & Networking
Over 20 years of hands-on experience in enterprise architectures, complex All-IP / MS Teams migration projects, Session Border Controllers, and multi-vendor video conferencing solutions.
Initial Consultation or Project RequestCore Competencies & Services
Comprehensive expertise from over two decades of project work across industry, public sector, and healthcare
Architecture & All-IP Transitions
Conception, design & migration of complex voice and video environments. Specialized in transforming legacy PBX/Cisco UCM to Microsoft Teams / Webex Calling including SBC integration (AudioCodes, CUBE, Anynode) and SIP trunking.
Training & Workshops
Certified MCT (2001–2017) for vendor-independent administrator training, operational handovers, and specialized workshops on VoIP protocols (SIP/RTP), SBC handling, and Wireshark troubleshooting.
Troubleshooting & UC Audits
Deep-dive incident analysis (logfile & SIP header analysis, Wireshark, TranslatorX), security and toll-fraud reviews, certificate management, as well as data center relocations and carve-out projects.
About Me & Qualifications
Christian Darley – Senior Consulting Engineer & Solution Architect with over 20 years of experience
Cisco Expert Level
CCNP Enterprise & Collaboration, CCNA, CUCM, CUBE, Expressway/MRA, UCCX, Webex Calling, Webex Contact Center.
MS Teams, Gateways & Networks
MS Teams, PSTN connectivity, AudioCodes Mediant, Anynode, Security+, Network+.
Video & Infrastructure
Pexip Infinity, Polycom, certificate management, TLS/mTLS, IT security, Wireshark deep inspection.
Submit a Project or Workshop Inquiry
Get in direct contact with Christian Darley – via email or through professional networks.
Direct Email Contact
Feel free to send me an email directly for project inquiries, architecture consulting, or in-house workshops.
✉️ Send Email (info@sercontrain.de)