How do you uninstall Update 15.5.15502.6

[Vissman]

I've had few 3cx phone systems in place for nearly 2 years now with no issues until the 3cx system was updated to Ver 15.5.15502.6 and started to experience intermittent one way audio calla/ internal call issues with users experiencing engaged tones when answering calls. All the PBX systems are behaving the same way since the update.

Added the firewall ports as per the new updates, I have done a firewall checks which comes back fine.

We are using compatible handsets (Grandstream 2130/2170) with updated firmware.

We use a compatible SIP Provider for calls.

I have been round the houses with internet suppliers/ sip providers and 3cx Tech support and just had lot of finger pointing not resolved the issue and now got to a point where would like to uninstall the update 15.5.15502.6 and can not see how to remove this update.

Any advice would be appreciated.

 

[hanstps]

Hi Vissman,

We had a few weeks ago the same problem.
The latest firmware for the gxp21xx phones by 3cx is version 1.0.9.102.
Audio and phone pickup problems are related to this firmware, you will find error 488 in the 3cx log files.
If you look on the grandstream.com firmware update page a new version 1.0.9.108 resolves this problems. I posted a few weeks ago already some posts in this blog.

Version 108 is not yet tested and thus not released by 3cx.
You can simply force the upgrade in the webinterface of the phones. Don't forget to ENABLE temporaray the option 'Always Skip the Firmware Check' in the gxp. Otherwise after upgrading 3cx will force the phone to a downgrade after a few minutes.

I installed this solution already a few weeks ago and users no longer complains.

Bye,
Hans

 

[Vissman]

Hi Hans @hanstps

Thank you for the information. I will test pilot the firmware upgrade and let you know how I got on


Much appreciated.