Probably asked and answered but I'm having a hard time finding anything on the Forum.

NEC SV9100
PRI from Comcast
DID DIL'd to a VIRT call coverage key on the EXT, button 5
15-09 is set to not ring (high level office, doesn't need ringing all day when with clients)

Caller-ID does not show bc it's not set to ring.

End user has asked to have caller ID publish but not have the virt call coverage ring.

Any advice would be great!

(we did not and do not want to program ring groups if at all possible)

The only time the extension (virtual or not) will show caller ID is if they are setup to ring or if the call is transferred to them. I don't know of any good work around except program it to ring and have them turn the ring volume down (intercom 729) when they are with clients. Note: the volume on the phones will not go to the point of not ringing, very low ringing is the best you will get.

Are these IP phones?

DESI-Less DT series phones Coral Tech

Well, I set it up on our lab and with a VOIP phone you can adjust the ring tone to downloaded ringtones for VE. So, what I did was record silence, uploaded it and applied it. Works like a charm.