The default voicemail has 15 voicemail storage capacity with no transcription.
Enhanced Voicemail: You can upgrade to enhanced voicemail for $4.99/mo which gives 100 voicemail storage capacity and audio to text transcription services. The transcription along with audio file is delivered to the user via email and it also available in iPlum portal.
Login: Go to the web page https://my.iplum.com on your computer or a tablet.
Accounts || Select Line || Manage Plans || Voicemail Plan Click “Change” and follow the prompts to select the new plan.