How can I use a visible a number as custom IVR

Hi together,

I need help in the following situation.

I have a number for our call center which is routed directly to a queue. Now I created some new queues and I created a custom IVR, which asks for the reason and routed to the queues with the correct reason (for Order and for Complaints).

Now I Take the number and use it for the custom ivr and it works. The Customber calls the number, the IVR asks for the reason and routed to the correct queue.

Now the question I have:

When someone wants to make an outbound call, the person can't use the number of our call center, because it's not more in the queue.

What can I do, that the agents can make outbound calls with the number and when customer calls the number, they are routed to the IVR?

BR

Sven