Update

Replaced 5x9 processor with 3x8 processor. I thought problem would be resolved. I was wrong.

It is things like this that drive a person crazy. I always verify my own connections first before I serve the ball into another court. I conducted the following test before calling in the provider for troubleshooting.

Direct connection of line 1 to processor from Dmark.

Direct connection of line 2 to processor from Dmark.

All sets removed from processor.

Connected 18D to EXT 14 port and made test call. Problem still exists!

I'm scratching the noggin! :scratch: