After a private-equity acquisition, a leading North American producer of expandable polystyrene resin was carved out of a large enterprise and had just six months under a Transition Support Agreement to stand up its own IT environment. The company needed a new Microsoft Teams tenant and a rapid Teams voice migration that could handle Microsoft PSTN plus complex analog and SIP edge requirements. Synoptek designed and executed the migration from a legacy PBX, stood up the new O365 tenant, migrated users, built routing, call flows, emergency location and edge services, integrated SIP paging and elevator/security connectivity, and provided UX design support. The engagement met the carve-out deadline, accelerated the move from Microsoft PSTN to Synoptek PSTN, simplified implementation, and achi

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