You can update the subdomain for the Webex SIP address for your organization.
We recommend that you change the Webex SIP subdomain after hours or during a maintenance window, because the domain doesn't change immediately.
Before you begin
For Hybrid Calling for Webex Devices deployments, when you're migrating an existing SIP address with the ciscospark.com address, use the Migrate Cisco Spark Hybrid Call Service Organization to the Cisco Webex Domain guide.
From the customer view in https://admin.webex.com, go to , and scroll to SIP Address for Cisco Webex Calling.
Click Edit Subdomain and choose from the following:
Click Save, read the notification, then click Yes to confirm.
(For Hybrid Calling with Device Connector) Sign in to the Device Connector and run a Sync All.
This action updates the Spark-RDs of the devices, in Unified CM, with the new SIP domain.
What to do next
If you have migrated your existing SIP address, you can verify that the SIP address changes were completed:
Where to verify in Control Hub
Go to Calling, and then you'll see the primary and backup SIP address entries., click any user, click
Go to Calling, and then you'll see the new SIP address entry., click any Workspace to open the overview pane, scroll to