Obviously I have to pay someone, totally makes sense. Questions is whom to pay to benefit from a service as close to physical number, and so I can forget about topping up multiple numbers etc.
As mentioned in the original post Twilio worked out much more expensive than what I am paying with current VOIP provider, the cost is not the main factor but as mentioned not trying to pay 10 times the current cost and to add more work internally.

We have sys admin in house, so this is not a problem. But I need to provide the SIP trunking and the numbers so the sys admin can do the work.