Every enterprise has a phone system that was supposed to last forever. Avaya. Cisco. Mitel. Built for a world where voice lived in a closet in the basement and nobody asked it to integrate with the cloud.
Then the world changed. Microsoft Teams became the default for collaboration. Voice moved to the cloud. And the PBX — once the backbone — became a liability. Vendor support ended. Compliance got stricter. Costs climbed. And the analog lines, the elevator phones, the warehouse paging systems? Cloud-only solutions shrugged.
That's the gap we fill.
Cutover Partners is a specialized enterprise voice engineering consultancy. We migrate large organizations — 1,000 to 10,000+ users — from legacy on-prem PBX systems and Microsoft Calling Plans to Teams Direct Routing using Session Border Controllers.
We engineer at the SIP packet level. We show the math before you sign. And when it's time for cutover, we're the calm ones in the room.
Large enterprises (1,000+ users) running:
If you have analog devices, complex dial plans, or E911 compliance requirements, you're exactly who we built this for.