Upgrade from v14 to v15.5 calls go to voicemail

[kmedri]

Hi,
I have just upgraded from v14 to v15 sp5
I am using grandstream phones GXP2130 and GXP2160 and have reset to default settings and updated firmware to 3CX version 1.0.9.71 from https://www.3cx.com/support/phone-firmwares/
I have used the default GXP2130 and GXP2160 templates from within 3CX
All phones show as connected and all extensions are green.
The GUI says the firmware version is unsupported and all calls go straight to the ext voicemail.
Calling out is fine

 

[craigreilly]

1.0.9.102 is current firmware.

 

[kmedri]

Hi Craig,
What the heck... I now see 3CX has just updated that page! Will try and see if it fixes the problem, I have spent hours on this lol.

 

[craigreilly]

I would check the call logs as well to see what is causing them to go to voicemail…