Office Messaging Software?

[bigdunc]

Hi

Does anyone know of any free/cheap software that allows users on a network to leave a message for other users? So if someone is on a phonecall and somebody else has taken a message for them, they can send them a pop-up message onscreen with details (who rang, number to ring back etc).

Cheers

 

[bigdunc]

Thanks for the quick replys. They currently have 30+ staff so don't really want to setup yahoo/msn style accounts for every user. Something that linked into exchange server 2003 would be ideal if there is such a thing?

Cheers