When you are saying "sending phone messages", I assume that it is simply sending popup messages to any computer in local network.
Yes, you can send Notezilla sticky notes from one computer to another within the same network. Notezilla also has features to send sticky notes to any computer over the Internet also.
Watch this short video perfectly depicting this feature:
You will need to install Notezilla on every computer that wishes to send and receive messages.
I suggest that you install Notezilla on 2 computers and try it out yourself, sending sticky notes to each other.
Download Notezilla from our website http://www.conceptworld.com/Notezilla