To manually program the voicemail button, indicated by the Envelope symbol, on a Yealink W56H cordless handset:
1. Press and hold the “Envelope” key.
2. Select “Set Voice Mail” and press “OK”.
3. Highlight your handset and press “OK”.
4. In the Number field, type *97
5. Press “OK” to save.
It's that easy!!! Please contact support at email@example.com if you have any questions and we'll be happy to help!