Possible minor bug, updating 1.3 2575 mess up factory configuration.
I have 2x Obi110, one in the office and one at home. Both are updated to version 1.3 build 2532 and have working setup.
Over the weekend, I noticed that there was a new version and I upgrade to version 1.3 build 2575 and suddenly all my calls out using the Line to my PSTN service reported 'number not in use', or there will be busy tone. Just before updating the firmware I was using it and the dial out were okay.
After checking through all the configuration, changed a few, rebooted 10 times, I couldn't solve the problem. So I tried to disconnect the physical phone and noticed that even with the phone disconnected, the Obi110 LED still shows connected. Using this hint, i plug the phone back and listened to the dial tone and it was emitting some strange buzzing sound.
I used the web panel to reset the phone to factory setting and then reentered my working configuration settings. From then on, the dial out worked as per normal. However, now plugging in the phone the LED is 'off' and only lights up after >2 minutes.
Maybe there is bug in the updating operation.
Come monday I will update the firmware of the Obi110 in the office and see if it repeats itself. In the mean time, those who encountered weird changes with 1.3 2575 may want to consider backing up the working configuration and do a factory reset.