Can I record my own voice mail greeting?
From PhonePower Knowledge Base
Yes, you can record your own greeting from the handset of the phone. When you log into your VoiceMail account for the first time, you will be prompted to record a new VoiceMail message. A VoiceMail greeting can be up to 60 seconds in length.
VoiceMail greetings and other VoiceMail box management options can not be completed through the my account section of the website. Please refer to our VoiceMail Options Map for more information.