|Product Model:||GXW-4008 V1.3B|
|Software Version:||Program – 184.108.40.206 Bootloader – 220.127.116.11 Core – 18.104.22.168 Base – 22.214.171.124|
|Extra – 126.96.36.199 CPE – 0.0.1.97|
Since phones are being not powered by the Grandstream unit, they cannot go off-hook, therefore never receive dial tone. Digital side seems to be fine, can access via web page, update configuration, etc. Update/Apply/Reboot are fine. Ports are registered just fine with the SIP server.
I have two identical units with the same problem. I suspect a hardware/software version conflict or similar. It is unlikely to have two units with the same hardware fault.
Opening a trouble ticket was unfulfilling, to say the least.
Factory reset and manually reconfiguring the ports does not seem to help.