I have configured a Cisco Call Manager 5.0 in a Lab with only 3 IP Cisco Phones. They can communicate between them, but I have not been able to configure the conference caracteristic among them. When I intend to make the conference an error message "No conference Bridge" appear in the display.
Can anyone help to me?
You will need to set up a Software Conference Bridge to test these features. Here is how;
Adding a Software Conference Device
From this doc;
Hope this helps!