A customer initiates a conference through SMC2.0+VP9650. When no operation is performed on any terminal or the SMC, all sites hear a voice prompting them to right-click to add sites.
Product experts confirm that this problem can occur only in the following two scenarios:
1. The * sign is pressed on the remote control.
2. False detection of MCU DTMF can occur at a low probability.
According to the customer description, no terminal performs any conference control operations. Therefore, the terminal problem is ruled out.
In the second scenario, you need to upgrade the MCU to V500R002C00SPCt00 or a later version. Then, log in to the MCU through the CLI, run the system-view conf-policy chair-ivr-add-site 0 command, and save the configuration.