I can't tell you how many times those have saved a whole lot of hassle, and especially in an airport, or after hours when you had to get a hold of someone and they are on the road. It's so nice to be able to do that instead of paging someone in an airport, and maybe they would hear it and answer you.
They are just very convenient, and there is a proper protocol and each company is different.
Diamondlady
Peer Moderator
