Zoom Telephony Architect :- Phoenix, AZ(Onsite)

Role :- Zoom Telephony ArchitectLocation :- Phoenix, AZ(Onsite)Job Description for skilled on Zoom Telephony ArchitectKey ResponsibilitiesLead end-to-end Cisco UC to Zoom migration projects, including assessment, design, planning, and executionAnalyze existing Cisco UC infrastructure (CUCM, Unity Connection, IM & Presence, Expressway, CUBE) and define migration strategiesDesign hybrid/coexistence architectures to support phased migrationsMigrate users, numbers, dial plans, call flows, voicemail, and auto-attendants from Cisco to ZoomConfigure and administer Zoom Phone, Zoom Meetings, and Zoom RoomsIntegrate Zoom with existing enterprise systems (AD, SSO, SIP trunks, PSTN providers)Execute number porting, SIP trunk migrations, and PSTN cutoversPerform detailed testing, validation, and user acceptance before cutoverTroubleshoot complex voice, video, and signaling issues during migrationDevelop migration runbooks, rollback plans, and technical documentationProvide post-migration optimization and stabilization support Required Skills & Experience5-10 years of experience in Unified Communications / Collaboration engineeringStrong hands-on expertise in Cisco UC including:CUCM, Unity Connection, IM & PresenceCisco CUBE and SIP normalizationProven experience migrating Cisco UC environments to Zoom PhoneStrong understanding of SIP, RTP, codecs, call flows, and dial plansExperience with enterprise PSTN connectivity, number porting, and carrier coordinationStrong hands-on experience with Zoom UC platforms, especially Zoom PhoneSolid understanding of VoIP fundamentals (SIP, RTP, codecs, call flows)Solid networking knowledge (QoS, VLANs, firewalls, NAT, SBCs)Experience supporting global, multi-site voice deployments