Although this is a time-limited freebie, thank you for that, there much better tools available that do not require an app to be installed on a phone and do provide more value to a business.
At first, I did not bother installing the phone app after looking at the severely lacking web portal.
I did however install the app, but still not impressed at all, there far better options to allow this to be done with far fewer limitations and better pricing or even free.
Where would I record the messages, setup schedules, and manage contacts?
As the product requires the app to work and cannot even be managed from the web that is a huge limitation for business use. Worse yet the app only uses the phone's contacts and would be a complete time suck to use with any type of CRM.

Seems like it is a good, not great tool for personal conveyance, think I know I need to call aunt (who will not shut up) for her birthday or I will never hear the end of it from dad but just give her a voice-drop and I can say I tried and just left a message. Yup this would be good for personal stuff not serious business use case.