I have a VoIP Public Announcement device that I would like to call via an analogue extension from the PABX.
Can I configure the HT503 to receive an analogue extension call and direct IP call the VoIP device on the other side, without SIP registration?
It seems simple but I might be misunderstanding something.
I can direct IP call the VoIP PA device from another VoIP phone and the sounds goes out on the amplifier, but I cannot get the HT503 to make a direct IP call to the VoIP PA device
NEC SL1000 analogue ext —> Grandstream HT503 —> Snom PA1 —> PA Amplifier
The HT503 receives the call, the Line light activates, I can hear its dial tone, but I cannot get it to direct IP call the VoIP device when it receives a call.
I was told this should work, but after fiddling half the day I am not so sure anymore.