Polycom VVX310 phones won't register in Freepbx 15 using Asterisk 17

Thanks for the reply. It’s a small church with only 10 Polycom VVX310 phones. They don’t use softphones and I don’t have another brand of phone to test provision.

The phones do show the line labels on their displays, but not the Park, Park 1 and Park 2 labels I configured on buttons 4, 5 and 6.

I switched from PJSIP to SIP to see if that was the cause of the phones not provisioning. Also, I found this post and saw that as evidence – Polycom VVX PJSIP.

I’m a relative newbie (1.5 years experience) and I did not check the /var/log/messages because I’m not yet well-versed on all the various troubleshooting methods. I will check that, though.

I did try several manual configurations both onsite on the phone and also through the web console. Nothing worked.