hi lc65000,
Short answer, everyone in your company can use the same outgoing caller-id name and number at the same time. Callers need a calling plan license to make outgoing calls. Your admin can permit callers to select to use their own phones numbers as their outgoing caller-id number or use the company main name and number.
Please see these support articles for details.
Managing the main company number and caller ID
https://support.zoom.com/hc/en/article?id=zm_kb&sysparm_article=KB0064090
Frequently asked questions about caller ID
https://support.zoom.com/hc/en/article?id=zm_kb&sysparm_article=KB0063187
Enabling Select Outbound Caller ID Zoom Phone setting
https://support.zoom.com/hc/en/article?id=zm_kb&sysparm_article=KB0058307
Did my response answer your question? If so, please don't forget to mark the reply as an accepted solution.
thanks, eliot