I finished setting up a voice notification profile and a Grandstream HT813 using the guidelines published by IA. I used the Test Pipeline feature on the gateway config page to test it. The gateway has two NICs and I did have to set the Local Bind Address to the IP address of the NIC I have connected to the HT813 in order to get this far.
I was able to get the notification to ring my phone, but as soon as I answer, the log file starts rapidly recording errors "cannot send rtp packet" and there is no audio. When I hang up, those errors stop and I get one more error "PhoneCall: Error executing call".
In the final error, there is text telling me that "because 'sipMessage' is null". Does that mean the pipeline had no text to send to the notification block?
Attaching a screenshot of the log with two of them expanded.
What should I try next?
Thanks