Zoho Desk custom domain for customers only, agents using desk.zoho.eu?

Zoho Desk custom domain for customers only, agents using desk.zoho.eu?

Hi,

I would like to keep our helpdesk at helpdesk.mycompany.org, but access the desk as agent via desk.zoho.eu/agent/mycompany.

I have at least one reason for it - when I have in Safari Prevent cross-site tracking on, telephony doesn't work.

The log is full of errors as the website is trying to make a websocket connection to wss://helpdesk.mycompany.org and of course it fails. 

Is it possible? The above issue isn't easy to fix, but I do not want to lose the customer-facing domain. Agents are fine going to desk.zoho.eu so it would be great if it didn't redirect.