Obihia and Google did a little dance a while back but finally kissed and made up. My service was never disrupted.
My OBi100 has gone end of life. The support was never outstanding nor really a problem. I bought a OBi200 to replace the OBi100
The E911 support from Anveo has been fine I guess. Thankfully I've never used it. Their billing system is kinda wonky. The E911 service is $15 per year and you have to pay for it with a prepaid account. Then when the year lapsed and there wasn't sufficient balance to renew they Anveo just canceled the service and sent me an e-mail.
Customer,I deposited $15 and put a reminder on my calendar.
We would like to inform you there was not enough funds in your account balance to extend your E911 coverage.
As of this moment the following E911 address is no longer covered and you can not make 911 calls:
Your current account balance: $0
You may not be able to place outgoing calls without having at least one E911 address configured.
Please add funds and re-configure E911 coverage for the above mentioned address.
After a couple of months using Google Voice I went back and reviewed all the incoming calls. I added all the known callers to the Contacts on that Google account. Then I flipped the switch to screen callers that weren't in the address book.