... Could we get to the rooftop with RVD? Via air conditioning system probably or something like that?
If we can, we could then use this:
But from the roof. Take a thin transparent tubing, drop it from the roof, or just fly down from the roof.
The way ATP works we should be immune to camera observation in the moment too, the risk would be someone who gets lucky or knows how our power works reviewing the video later and seeing our presence.
If we really want to sell it and we can get to the roof we could do the following:
1) Buy a shit cell phone. No cyber Devil so that it looks mundane to the wards.
2) ATP + RVD in and slip to the roof.
3) Spend 1 essence on BMI to look like a maintenance worker and 1 temp will on TTC for a window washer's platform.
4) Ride the platform down to his open window and toss the cellphone into the target's lap
5) Spend most of the rest of the scene pretending to wash the windows above the office while actually talking on the phone via our low profile headset. That way we're nearby if the target gets caught but everything looks normal.
6) If they agree to work for us we apply FSB. The charm doesn't actually say we have to touch the target, just make an offer and have it accepted.
7) As the scene is about to end we ride up to the roof, "put away" our equipment, and leave by flight or the way we came.
That costs us 2 essence to set up, and we can always leave early to continue the call elsewhere if we need to flare for something social.
Honestly the only reason not to use the desk lines is that it's probably monitored.