Im curious on the item name Calling Beeper or the other I think call Flying dont know what system...
May I know what is the actual function of it and is it able to get??
To add, they are quite valuable. Can be bought from other players and can be traded an unlimited amount of times.
I would suggest getting married to your healer so you can use the teleport rings from those. Also buying a witch summon/fly book is 3-5mil each. I guess in the long run, over several years, it would pay off to have gotten a fly positioning system (to fly to the other person) or a calling beeper (to teleport to the other person) but I would suggest just getting the books for now.
I don't know how much they are worth but most likely 10bil + or several thousands of AG.
You also can drop it at League reward bags at rank 11. If your league have a totem just make a army of rank 11 alts and exchange the bags daily for a chance to drop the bleeper or the fly position system. (Free way)
You may be better off with a "FPS" Flying Positioning System that does the exact opposite, lets you fly to any player on the team.