Star Transfer add on feature | Transfer directly to voicemail
The ability to transfer inbound calls answered and send them directly to voicemail. Grandstream and Vtech devices already do this, but don't announce any greetings.
The *6 transfer allows any device to transfer a call. Including a
code with each extension (example 9101 for ext 101) to transfer to its voicemail box would get this working across all devices!