In my chat application based on Firebase, I wanted the ability for a user to know if another user is online on any one of the devices (browser / iOS / Android). I referred to the sample shown on ...

I am using Smack and Openfire server for a chat client, all things working well like chat, sending an invitation for a new addition of user, getting list of available users etc. I don't have a clue...

I want to add MS Office communicator presence indicator into my Java Application(jsp).

I run a game website so I have many users logged in and they can do certain things once every two minutes. I have a CAPTCHA system in places, and for some things it will always ask for a code, and...

I'm interested in finding out more about the Microsoft Office Communicator IM client, and how it determines your presence (i.e if you are at your computer or away). Can anyone point me towards a tu...