Only when you bind agents to a number will the number be able to receive and make calls.
You can assign different inbound and outbound agent to the number.
You can leave agent unset to disable inbound / outbound (for example, you are doing outbound and don’t
want callbacks, you can leave inbound_agent_id unset)
After binding an agent for inbound, you should be able to receive inbound calls already.
A lot of times, you want to use different agents to handle inbound calls of a number; also you need a way to provide dynamic variables to use for inbound calls, and other fields specific to that call.Read more at Inbound Call Webhook