I have tested the scenario on SFB 2015 pool. Below users (test4& test5) are non-EV enabled.
Note: Editing the topology manually is not recommended. Be extremely careful when removing the items.
I have a user (test3)in my SFB lab environment with below display name. I have six words in the display name parameter.
I have observed below issue when you are testing peer to peer PSTN call flow via synthetic transaction. I got 403 forbidden when running the cmlet against a EV enabled user as seen below. I was able to make PSTN calls and dianplan/normalization rule looks fine.