We have Grandstream gxp2130 phones managed with the commercial endpoint manager with a fresh install of FreeBPX 184.108.40.206
All has been going according to plan (we have a similar setup with an older version of FreePBX at a different location) until we attempt to transfer calls.
The blind transfer seems to try and transfer, according to the phone’s display - but nothing appears in FreePBX. But that’s just the related issue.
When I hang up the phone nothing happens in FreePBX. It doesn’t recognize the phone hung up - ever.
This same issue happens when I perform a Page. I can make the page but when I hang up all of the paged phones remain off-hook, because the phone didn’t tell FreePBX that it hung up.
But when I dial an extension directly, talk and hang up, the phone appears to send the hangup signal properly and it appears on the Asterisk Console.
Any ideas where to start troubleshooting?
Thanks in advance,