Hiiiiii,

In my office we have 50 computers,all these will work in workgroup only.other 3 employees will work from home only.these 3 employees must chat with these 50 employees.I don't want Yahoo messenger and gmail these type of chatings.is there any software to chat in lan and out 3 systems.*** its very urgent

Microsoft Communicator (NOT messenger) and Lotus Sametime are just two that come to mind.

OK tell me which one I must use

You don't HAVE to use either. It depends on which you like better... and which makes more sense to you cost wise.

I actually use BOTH at work. (different portions of the company use one or the other... I actually deal with both groups however) They each have their good points.

Because you actually have to buy either. I would talk to a sales guy... have them explain their features to you. What they cost and decide which will be a better fit to your offices needs and be in your buget.

There really is no one right or wrong answer that applies to everyone. If you see the point I am trying to make. What works for me how I use it for example might not be the best for how you would need to use it. They both can do a lot more than just send instant messages.

In a 50+ license environment you don't jump into things blind. You have to make an infomed decision. An bad choice can be very expensive.

And no... sorry, I am not familiar with the pricing aspects of either. Only having been using these for a long time.