Von C.

I modernize Cisco UC for mid-enterprise teams: CUCM 8–15 upgrades, Webex Calling migrations (Local Gateway/CUBE), dial-plan redesign, Unity & UCCX. 100% JSS, Top Rated, 90+ projects delivered with low-risk, zero-downtime cutovers. What you get • Webex Calling migrations (Local Gateway on CUBE, SRTP/TLS, E911/RedSky) • CUCM/Unity/UCCX upgrades & health checks (8.x→15.x) • CUBE/SBC setup for SIP trunks (TLS/SRTP, dial-plan/E.164) • Expressway MRA, Jabber → Webex app transitions, site cutovers Selected outcomes • 2,500-phone CUCM→Webex cutover, zero downtime, E911 verified • CUBE hardening + SIP normalization, eliminated 606/47 & one-way audio • CUCM, Unity Connection, UCCX upgrades with little to no down-time How I work 1. 30-min discovery + artifact review (config, call flows, carrier details) 2. Plan: risks, rollback, test matrix, success criteria 3. Implement in waves; validate CDR, media, and E911 Why me Top Rated, 100% JSS, 90+ Upwork jobs. 24+ yrs Cisco UC. CCNP Collaboration. Let’s start Send your current topology + target state. I’ll come back with the migration plan and a fixed-scope quote.