Ability to add a phone numbers to organizations

Hi, 

We have 2 types of users (customers and clients)

I want to be able to add phone numbers to organisations as well as domains so I can ensure all comms from our clients are only routed to one team and they are not to receive any calls/ chats/tickets from our customers. Vice versa for the customer team. 

I know there is a workaround of adding the organisations as a user and adding their phone numbers here but this is duplicating the work for our sales team when adding their info into ZD.

I have tried adding a custom organisation field using the 'number' selection but unfortunately, this did not work. 

Has anyone else found a way to do this? Is it on the roadmap at all to allow a phone number (ideally more than one) to be associated to an organisation?