Not receiving inbound calls from landlines

hi ​@Eric Bahr 

There can be several reasons for not receiving inbound calls from landlines.

It may be that these clients and prospects are calling the wrong number.  If they are getting your numbers from your website, advertising, or print media, check to see if these sources are correct as to your numbers.  Check with your prospects and clients as to which of your telephone numbers they are calling and experience issues with connecting.

Check that the clients and prospects are calling numbers:

1. assigned to your auto receptionist, call queue, shared line group, common area phone or zoom phone users;  and
2. have the correct business hours in the associated auto receptionist, call queue, shared line group, common area phone or zoom phone users

Check to see if your Zoom Phone telephone numbers have been blocked by their landline carriers.  Have your customers that experience issues with calling your Zoom Phone telephone number add your Zoom Phone telephone number to their telephone address book.

Check to see that the callers’ numbers are not blocked on your Zoom Phone system.

Check to see that the callers’ numbers are not being blocked by your scam settings.

Some landline carriers using time division multiplexing (TDM) do not comply with the Federal Communications Commission STIR SHAKEN and may be identified as spam.

These are the Zoom Phone support articles addressing spam and call blocking:

Admin guide for Zoom Phone Spam

https://support.zoom.com/hc/en/article?id=zm_kb&sysparm_article=KB0057965

Caller STIR/SHAKEN checkmark icon for Zoom Phone

https://support.zoom.com/hc/en/article?id=zm_kb&sysparm_article=KB0068360

Changing phone user settings

https://support.zoom.com/hc/en/article?id=zm_kb&sysparm_article=KB0069338

Managing the blocked list

https://support.zoom.com/hc/en/article?id=zm_kb&sysparm_article=KB0069986

Please let us know if these suggestions worked for you.  If so, please mark this as Best Answer.

Thanks,  Eliot