Hi Ryann_207,
I think Zoom Phone System - US & Canada Unlimited Plan would work for you.
You mention that you want people to be able to call during work hours. Zoom auto receptionist supports both 24/7/365 call routing as well as custom work hours routing. During your business hours, zoom could route calls to your desk phone, your pc and or your cell phone. During non-business hours, zoom could route calls to voice mail and send a transcript and recording of the voice mail to your email account.
With over 7 million active zoom phone seats, Zoom has extensive features that any individual or enterprise user might need.
Zoom Phone Features
https://support.zoom.com/hc/en/article?id=zm_kb&sysparm_article=KB0061373
You will be able to access zoom phone from a windows or a mac pc, ios or android cell phone as well as certified desk phones.
Your Yealink T46s is on zoom phone certified list but must be one manufactured on or after 2019. In addition, if the phone is registered to another voip service, the phone must be removed from the prior service and reset to factory settings.
“Yealink devices manufactured before 2019 are not compatible with Zoom Phone encryption and certificate security requirements. The device will fail Zoom Phone provisioning, even if it was added to the account manually or in bulk.”
Did my response answer your question? If so, please don't forget to mark the reply as an accepted solution.
thanks, eliot