Do I have to migrate off Zoom Phone?

No. Zoom Phone stays your phone system. Open is a SIP destination on the queues/branches you choose.

Does this work with Zoom Contact Center?

Yes. Add Open as an external routing destination on the skill/queue.

BYOC gives you the cleanest path for Zoom Phone routing to Open. Zoom Contact Center can route to Open without BYOC.

Can the AI escalate to my Zoom users?

Yes. SIP REFER returns the call to a Zoom user, queue, or ZCC skill with the transcript attached.

What does this cost on top of Zoom?

Zoom keeps invoicing seats and calling plans. Open charges per resolved conversation.

How long does setup actually take?

Inbound is typically 20–25 minutes — BYOC pairing adds time vs. pure CPaaS providers.

UCaaS

Open for Zoom Phone

Pair Open with Zoom Phone via BYOC SIP or Zoom Contact Center routing and the AI picks up — Zoom Phone stays your phone system.

Try now

Setup time: Under 25 minutes
Auth: Digest credentials or BYOC SIP pairing
Directions: Inbound · Outbound · Call transfer
Pricing: Included with Open

01 — Overview

Can I add an AI phone agent to my Zoom Phone setup?

Yes. Zoom Phone supports BYOC (Bring Your Own Carrier) SIP and Zoom Contact Center supports external routing destinations. Open plugs into either pattern.

Zoom Phone remains the phone system. Users, devices (Zoom desktop/mobile, certified Zoom phones), call queues, auto receptionists, and the Zoom admin portal all stay where they are. Open joins as a SIP destination on a BYOC trunk or as an external routing target in Zoom Contact Center.

For Zoom Phone with BYOC, the cleanest pattern is to add Open as a peer on the BYOC SIP trunk Zoom is already paired with. Inbound calls hit Zoom, follow your call queue or auto receptionist routing, and at the point you want AI to take over the call leg goes to Open over SIP. The AI picks up and the rest of the conversation runs over standard SIP/RTP.

For Zoom Contact Center, the pattern is more direct: Open is configured as an external routing destination on a queue or skill. Inbound calls matching the routing condition hand off to Open via SIP, the AI handles the conversation, and escalations return to a Zoom Contact Center queue via SIP REFER with the live transcript attached.

What the AI does on the call: it listens, reasons over your knowledge base and connected tools (Salesforce, HubSpot, Zendesk, ServiceNow, calendar, payments), and acts. Every call is recorded and trace-logged.

Billing stays predictable. Zoom keeps invoicing your Zoom Phone seats and any Zoom-supplied calling plans. Open charges per resolved conversation, with no markup on Zoom minutes and no extra Zoom seats needed for an AI front-line.

What stays the same on Zoom Phone

Zoom Phone users and devices
Seats, certified phones, and the Zoom app don't change.
Numbers and calling plans
Zoom Phone numbers (or BYOC numbers) stay where they are.
Call queues and Auto Receptionists
Existing routing keeps working. Open is one external destination on the branch you choose.
Zoom admin portal
You manage the phone system the same way.

What's new with Open

A SIP destination via BYOC or ZCC
Open's SIP URI becomes a destination reachable from Zoom Phone via BYOC or directly from Zoom Contact Center.
AI handles the conversation
On opted-in branches, the AI greets, listens, calls your tools, and replies in natural speech.
Transfers carry context
Escalations to a Zoom user, queue, or ZCC skill receive the live transcript via SIP REFER.
Pricing model
Open per resolved conversation. Zoom seats and calling-plan minutes stay invoiced by Zoom.

02 — Why this works

The native Zoom Phone experience

BYOC-native
Open joins as a peer on Zoom Phone's BYOC trunk — no exotic licensing.
Zoom Contact Center as a first-class target
Add Open as an external routing destination on a ZCC queue and route by skill, business hours, or overflow.
No new seats for AI
AI is a SIP destination, not a Zoom user.
Warm transfer back to Zoom agents
When the AI escalates, the call returns to a Zoom user, queue, or ZCC skill with the transcript attached.

03 — Setup guide

Wire up Zoom Phone in under 25 minutes

Two trunks — one inbound, one outbound. Both configurable from Settings → SIP in the Open dashboard.

1
Open Settings → SIP
Open the inbound trunk configuration.
2
Pick a SIP region
Choose Global, US, EU, or APAC.
3
Copy the SIP credentials
Grab the SIP endpoint, username, and password.
4
Pick the Zoom target
Decide which call queue, auto receptionist branch, or Zoom Contact Center skill should route to AI.
5
Add Open as a destination
Zoom Phone with BYOC: add Open as a peer on the BYOC trunk. ZCC: add Open as an external routing destination on the queue/skill.
6
Add the matching numbers to Open
Under Phone Number (DID), add the Zoom DIDs that fronted the queue.
7
Assign numbers to an AI agent
Channels → Phone → Agents → assign DIDs.
8
Place a test call
Dial a Zoom number and confirm Open answers when the routing branches to AI.

04 — Configuration

Settings → SIP, at a glance

A real inbound trunk for Zoom Phone looks something like this. Yours are generated when you open Settings → SIP.

Inbound trunk · Zoom Phone

Sample

SIP endpoint: sip.us.opencx.comUS region
Transport: TLSrecommended
Zoom pairing: BYOC trunk / ZCC route
Username: open_inbound_zm…
Password: ••••••••••••••••

05 — Security

Encrypted, audited, refundable

SIP over TLS for signaling, SRTP for media. Every call is logged with full reasoning traces. SOC 2 Type II, GDPR-aligned, HIPAA- and PCI-ready. Backed by the Open $2M Refund Guarantee.

06 — FAQ