I am running MiCollab Client 18.104.22.168 with a MiVoice Office 250. Sometimes, when dialing a feature code from the MiCollab softphone (prefixed with a hyphen), the feature code takes effect, but the call does not hang up. It remains in the Active Calls list, but the call window is not displayed. From the active calls list the call window can be brought up and the call hung up manually.
Has anyone else seen this behavior or have any recommendations on how to prevent it?