Has anyone had any experience with using Grandstream Wave as a SIP extension on a Toshiba CIX670?
I have it running on an iPhone Xr, but there is no audio/voice path. If i call an extension from the iPhone, the extension rings, but when you answer, there is no voice path. Likewise if I dial the SIP extension from an IPT on the CIX, the iPhone rings, but again, no voice path.

I am sure there is some sort of setting I am missing, but I can't seem to find it.

any assistance would be greatly appreciated.

Stay safe everyone!