Zoom Certified Integrator
Retire your Cisco on-prem PBX and move to cloud Zoom Phone, with CUCM dial plans, SIP gateways, IVR, call queues, e911 and devices rebuilt and validated. No more on-prem hardware to patch and maintain.
Yes, you can migrate from Cisco to Zoom Phone. Codimite, a Zoom Certified Integrator, moves Cisco Unified Communications Manager (CUCM) and legacy on-prem PBX to cloud Zoom Phone, extracting your dial plan, route patterns, IVR, hunt groups, voicemail and e911 and rebuilding them natively, with numbers ported by LNP in zero-downtime windows. The value is a clean cloud rebuild that retires SIP gateways, SBCs and PBX hardware, not a fragile lift-and-shift.
Why migrate
No more CUCM clusters, voice gateways, SBCs or PBX appliances to patch, license and maintain; Zoom Phone is fully cloud.
If you already run Zoom Meetings or Team Chat, Zoom Phone joins the same Zoom Workplace platform, collapsing Cisco UC licensing, smart-net contracts and a separate vendor.
Calls, meetings, chat and whiteboard under a single cloud admin console and identity provider, instead of CUCM/Unity admin plus your Zoom stack.
Call summaries, voicemail transcription and next-step prompts from the same assistant that handles your meetings and chats.
Cloud redundancy and remote-work readiness without maintaining on-prem failover, gateways or VPN-tethered phones.
What we migrate
| Cisco / CUCM element | Rebuilt in Zoom Phone | Notes |
|---|---|---|
| DIDs & main numbers | Ported via LNP | Carrier port in a scheduled window; zero downtime |
| Dial plan & route patterns | Zoom Phone routing | Partitions, CSS and translations reconstructed |
| SIP trunks / voice gateways | Zoom carrier or BYOC/SIP | Gateways & SBCs decommissioned or repurposed |
| IVR / auto-attendant | Native auto-attendant trees | Menus and business hours rebuilt and tested |
| Hunt groups / call queues | Zoom Phone call queues | Routing, overflow and agents reconstructed |
| Unity voicemail & greetings | Zoom voicemail | Greetings re-recorded/re-uploaded; boxes provisioned |
| e911 / emergency addresses | Dispatchable locations | Registered and tested per site |
| Cisco IP phones | Re-provisioned or swapped | Supported models re-homed; others replaced with certified devices |
| Users & identities | Zoom users | Mapped to your IdP / SSO |
Dial-plan complexity, site count and carrier port timelines are the main schedule drivers, confirmed during the assessment.
Our process
We audit your CUCM/Unity config, dial plan, route patterns, SIP trunks, gateways, devices and e911 footprint, and confirm what ports and what gets rebuilt.
We map the dial plan, routing and locations to Zoom Phone, decide Zoom carrier vs BYOC/SIP, and prepare LNP porting paperwork.
Zoom Phone is provisioned in parallel with CUCM (extensions, IVR, queues, voicemail and e911) with hybrid routing during transition.
A pilot site validates call quality, routing, devices and e911 before any numbers move.
Numbers cut over site by site in scheduled LNP windows with rollback ready; zero downtime per number.
Retire CUCM clusters, gateways and SBCs, then provide adoption support and 24/7 cover through the cutover.
Why Codimite
Phone migrations are our core practice, delivered by a Zoom Certified Integrator who reads CUCM dial plans and rebuilds them faithfully in the cloud.
Get a QuoteZoom Certified Integrator. Phone migrations are our core practice, not a side service.
On-prem PBX expertise. We read CUCM dial plans, route patterns and SIP gateways and reconstruct them faithfully in the cloud.
Zero-downtime porting discipline. Parallel/hybrid run, scheduled LNP windows and rollback plans so calls never drop.
e911 compliance built in. Dispatchable locations registered and tested per site before go-live.
24/7 support & clear reporting. Route-by-route validation and progress visibility through every wave.
FAQs
Yes. We migrate CUCM and other Cisco on-prem PBX systems, rebuilding dial plan, route patterns, IVR, hunt groups, voicemail and e911 natively in Zoom Phone and validating before cutover.
We move you to Zoom's cloud carrier or BYOC/SIP trunking, then decommission or repurpose voice gateways and SBCs, removing on-prem PBX hardware from your estate.
No. Zoom Phone runs in parallel/hybrid with CUCM and numbers port in scheduled LNP windows, so sites cut over wave by wave with no service gap.
Many Cisco handsets can be re-provisioned or swapped for Zoom-certified devices; we assess each model in the device workstream.
Pricing is scoped to user count, number of sites, dial-plan complexity and devices. Start with a free assessment for a fixed quote.
Comparing cloud phone systems? Our Zoom migration services page covers the full Zoom Phone path and other source platforms.
Codimite rebuilds your CUCM dial plan, routing, IVR and e911 natively in Zoom Phone and ports your numbers with zero downtime, retiring on-prem gateways and SBCs.
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