Telecoms Consultant On site Organisation Upgrade Project Inside IR35 | Full-time, On-site | up to £400 per day Were hiring on behalf of our client for a Telephony Consultant to support a multi-building telephony and infrastructure upgrade across a public sector organisation. Youll assess legacy systems, recommend modern solutions, and support transitions to Teams-based telephony and refreshed physical infrastructure. What youll do Survey buildings to review legacy telephony, cabling, comms rooms and exchange areas. Identify upgrade requirements and propose solutions covering Teams Voice, structured cabling, physical infrastructure refresh and installation needs. Produce recommendations for Project Management approval, then build and allocate work plans for delivery teams. Work confidently with stakeholders at all levels Maintain accurate documentation, site-survey notes and progress logs. Use tools like Wireshark to identify network identity and port allocation. Support deployment, installation and cutover activity across multiple buildings. What youll bring Project experience of working in a large multi-site environment. Strong understanding of legacy telephony and associated physical exchange infrastructure. Knowledge of Cat5/Cat6 cabling, K rone frames, structured cabling standards and installation practices. Experience with Teams Voice migrations or similar telephony upgrade programmes. Comfortable conducting physical site surveys and coordinating upgrade activity. Strong communication skills with both technical and non-technical stakeholders. Good documentation discipline and familiarity with Wireshark or similar tools. Apply Apply now through 4C Resourcing to be considered for this exciting opportunity