Wall mount phone

[TheRydad]

Is anyone aware of a wall mount phone that uses the traditional standard "2 stud wall plate" mounting (pictured below)? I have ordered 4 phones for testing (Fanvil X4 & X6, Grandstream GXP2135 & GXP2170) and none use the standard wall mounting plates. For the locations where I need the phones, they will be primarily used for making and receiving intercom and paging calls so I need them to have a speakerphone and at least 4 programmable buttons to make one-touch intercom calls. Something like the Grandstream GXP2135 would be perfect with standard wall mounting.

<editorial>I kinda feel like I'm taking crazy pills trying to find a solution for this. It never would have occurred to me that any phone that lists "wall mountable" as a feature would mean they expect you to mount it with drywall anchors and a non-hidden Ethernet port.</editorial>

Thanks for any guidance anyone can provide.

-r