Users attempting to add a phone number have no way to know the format we are using, and get errors that offer no help. The API does actually provide some instructive advice. It'd be great to make it more apparent what "the right thing" is. 
Users attempting to add a phone number have no way to know the format we are using, and get errors that offer no help.
The API does actually provide some instructive advice. It'd be great to make it more apparent what "the right thing" is.
