I was wondering if you provide incall services and don't have a place that you want to bring a client to, do you just get a hotel room and bring them there?

Yes, incall means you get the hotel room and have the guy meet you there. A lot of guys like this because they don't have to deal with a paper trail. (Always be sure to screen!)

I'm not sure, but I think you're asking for more advice and not just a helpful definition. From others posting here (Newbie) and elsewhere (General, Regional Boards), people do discuss hotel selection for "friendliness" to avoid overzealous managers, staff or house security. Some hotels require security keys to use the elevator (you'll have to meet people in the lobby and bring them up). Some places make it harder or easier to get extra towels and linen. Some places do not have convenient parking (some guys don't want to park at the hotel garage). And so on. So it's a little more than "just book a room". You need to do a little research to make sure you and your date will be comfortable with more than just the room itself but with the entire process.

Is the lobby crowded with people so a hobbyist won't stand out?
Even more important:  don't pick a hotel where you need a key-card to use the elevator.  Otherwise you'll have to come down to give them access.  Not good!  You can get info on which hotels work best by going on the local board and asking.

Also, what the layout and/or activity level of the hotel matters too - if you are in a city, and the hotel has lots of activity (people coming and going), a provider and client can easily get lost in the noise.  In terms of layout, where are elevators - are they located conveniently so that client can just walk to them without passing front desk, do they need keys to go to floors - this is not such a problem in a busy hotel with coffee shop, bar, restaurants, etc. - but in some business hotels, the lobby is fairly empty, there is little people traffic, and front desk observes everyone one coming and going - this is what I consider "unfriendly"