It depends! You can receive up to 5 calls at once, as long as you have 5 phones linked to your account. The calls come in like queue. You answer the first call, then when the second call comes in, your linked team member answers and so on. So you can be on 5 calls at once.
A happy customer
The owner of Catch My Drift Snowplowing loved that his phone line wasn’t completely tied up when he was on a call. He could be talking to a vendor, and still not missing calls from existing customers or leads because he had phones linked up to his account. So while he was chatting business on one call, one of his team members was making a sale on another call.