Quick PHP Chat

I want to ask if there is any way the visitors to login in the chat without to write any nickname. Just the script to give auto nick name something like guest1, guest2 ?

I don’t know why but a lot of my Users tell me that they got kicked out a lot of time and I haven’t done anything.

Is it possible that admin can have private conversations instead of a group conversation? This would be a nice customer service feature to add to a retail site.

Can this be formatted and used on mobile phones? as a chat support for a mobile website.

it works well so far. But it seems to be problems with a timeout. various entries appear twice or even more times. is there a fix?

Works on Wordpress?