I’m experiencing an interesting issue that just started recently over the last few months. I have a PBXact setup for a customer (property management co) at their office (we will call this system A). At my office, I have a FreePBX system on premise for a non-profit that I run (we will call this system B). I also have a FreePBX setup in the cloud for my IT business (we will call this system C). Additionally, I have several FreePBX systems in the cloud for other clients.
The issue I am experiencing is that when I call system A, the property management co, from system B, the PBX will answer but I will hear nothing. Normally it would go to their IVR. But I hear nothing. I can see the call come in from the CLI in asterisk. But again, I hear nothing.
I can call system A from ANY other of the phone system’s I have out there, or my cell phone, and all works perfectly. But any time I call from system A, it connects and all I hear is silence.
I have checked to see if my CID is blacklisted in system A, but it is not. I used to be able to call to system A from system B because that’s what I would use to run call tests for the IVR, etc.
I can’t seem to figure out why, with just that one number or system, it does that. Any ideas of what could be causing this?