sip passthrough

My VoIP was working fine a few months ago, with the Grandstream HT801, Starlink, Andrews & Arnold service in the UK. However, over the weekend, I discovered that it's no longer working. There is no voice in either direction. You can call the phone and it rings, but the call is dead. Same in the...

In a nutshell, I recently upgraded my firmware to 3.0.0.4.380_3281 from 3.0.0.4.378_9212 and now I am unable to receive inbound calls on my SIP softphone. I upgraded because of some odd-looking activity in my logs (people trying to login remotely), and after seeing the change log for the...