Our accounting team does not have a direct phone number so listing a phone number for our receptionist who can then forward a call has been our solution thus far for the number to reference on a client invoice. With COVID-19 and office closures, we are working remotely, and our phone calls from clients are hitting the main line and then getting lost in the plethora of voicemails. We'd like Quickbooks to allow for an extension number to be added to a phone number on the sales invoice form. It seems like this would be an easy accomodation to make - in our case a 4 digit extension number needs to be listed with the phone number.