There are 3 Servers depending on different solutions available in market they are:

1. Email Server: You can use email server to send documents from one pc to another. ERPWEB has simple email management system.
2. News Server: You can use news server to start a bulletin board news services. ERPWEB Workroom is like news server.
3. Chat Server: You can talk to people in realtime using Chat. ERPWEB has a simple chat server to link erpweb users in realtime.

There are three options for installing commerical communication systems:

1. MS Exchange Server or IBM Lotus Notes can work very well as commercial communication server with email, news & chat facilities.
2. Linux has built in powerful email server with newsgroup as well can also be used as commercial communication server at very low cost.
3. Free Email, News & Chat servers are available online on sites like www.intranet.com or www.yahoo.com can also be used as low cost alternative without investment and overheads. This solution is cheapest among all the three