C3Voice user can make a callback to the caller who left the message during a voicemail session using an advanced option (follow the instructions as prompted), provided that C3Voice received a caller id number that is either a 10-digit North American phone number or a 4-digit C3Voice extension.
C3Voice admin can configure a 0-escape target (an extension) for a Service and also an individual extension (which overrides the Service target) so that a caller can escape from a voicemail session to the specified target by pressing the 0 key.
From a user Web portal application a C3Voice user can maintain a number of voicemail distribution lists. Each distribution list consists of valid extensions and corresponding user names within the service. A user can upload a message from a local directory (e.g. saved voicemail message) and send it out to one or more voicemail distribution lists.
C3Voice admin can enable sending out a text messaging notification to a specified address when a new voicemail is left for an extension.