Alpha availability — This integration is in alpha testing and not yet available for general use. It requires an enterprise integration with Synthflow and is currently deployed only in the U.S. region.
Zoom Phone’s Virtual Agent feature routes incoming calls to a Synthflow AI agent. You will install the Synthflow app from the Zoom Marketplace, copy the integration phone number into Synthflow as a custom number, and point your Auto Receptionist to the virtual agent.
Open the Zoom App Marketplace and search for Synthflow AI. Install the app and authorize the requested permissions. After installation, the app appears under Added apps in the Zoom Marketplace management page.
Once the app is connected, a virtual agent entry is created automatically under Phone System Management > Virtual Agents in the Zoom admin portal.
In the Zoom admin portal, navigate to Phone System Management > Virtual Agents. Click the three-dot menu next to your Synthflow virtual agent and select Copy integration number.
Next, open the Synthflow dashboard and go to Phone Numbers. Click Import Phone Number and configure the following fields:
Scroll down to confirm the Origination URI field. Note the inbound and outbound SIP URIs:
sip:sip.synthflow.ai:<port> — this is the address Zoom sends calls to and is auto-populated by Synthflow.156.45.35.193:5061;transport=tls, used for any outbound routing.
Click Import to save the number.
In the Zoom admin portal, navigate to Phone System Management > Auto Receptionists. For each phone number you want Synthflow to handle:
Repeat for every number that should be answered by the AI agent. Once routing is active, incoming calls to those numbers are forwarded to Synthflow.
After the phone number is imported, attach it to the agent that should handle incoming Zoom Phone calls:
The agent is now live on that number. Any call routed through Zoom’s Auto Receptionist to the Synthflow virtual agent will be answered by this agent.
One phone number can be assigned to one inbound agent at a time. If you need to reassign the number, remove it from the current agent first. For more on number management, see Phone numbers.
If calls are not reaching your Synthflow agent after completing the setup:
156.45.35.193 and the outbound proxy is 156.45.35.193:5061;transport=tls, with username, password, and auth username left empty.Once configured, incoming calls to numbers routed through the Auto Receptionist are forwarded to your Synthflow AI agent. The agent answers calls, follows its configured prompt, and can perform any actions available to it (transfers, booking, data collection).
Prerequisites: The Synthflow app must be installed, the integration number imported, and at least one Auto Receptionist routing rule pointing to the Synthflow virtual agent.
Both warm and cold call transfers work with Zoom Phone. The Synthflow agent can transfer calls to external phone numbers or SIP endpoints during a conversation.
Prerequisites: Call transfer actions must be configured on the agent in the Synthflow dashboard.
Call recordings and transcripts are available in the Synthflow dashboard under the agent’s call history, the same as any other Synthflow call.
Prerequisites: None beyond the base integration setup.
To disconnect Synthflow from your Zoom account:
After removing the app:
Contact your Synthflow account manager. The integration requires an enterprise plan and is enabled on a per-account basis.
Not at this time. The integration is currently limited to the U.S. region.
Set the SIP domain to 156.45.35.193 and the outbound proxy to 156.45.35.193:5061;transport=tls. Leave the username, password, and auth username fields empty.
Synthflow retains call logs and recordings made before removal per its data retention policy. To request deletion, contact support@synthflow.ai.