Buffer question.

Hi to all,Im sorry but I'm a bit of a newbie in this scene,Ive recently met a buffer bot,Whe you whisper to it and say "inviteme" it invites you to party,when you say "summon" it summons you to its location and when you say "Fighter" or "Mage" it gives you fighter or mage buffs is that some special buffer bot or is that L2Walker ?
Thanks in advance!
Hamscer.

would be possible with a bot too yes and probably it is one if he has to be invited to your party