I have one POTs line going through an ATA, Three GV lines through and Obi and one SIP trunk. The POTs. Line has a noticeable clicking (about 5 clicks) every 30 seconds or so. It’s not there when I plug an analog set into the MPOE. I’m guessing there is a SIP setting that would be causing this…any thoughts?
It should be possible to configure the ATA (for testing purpose) so an analog phone connected to an FXS port can make a call via an FXO port. This internal path does not use the network. If it also has the clicks, the problem is in the ATA, possibly fixable by replacing the power adapter or with newer firmware.
@dicko- The ATA is sitting on top of the PC running FPBX and the Obi is in another location. The external power supply of the ATA is next to the external power supply of the PC and a UPS. I’m thinking that may be causing noise.
I’ll isolate the ATA and it’s power supply then test as @Stewart1mentioned. I’ll let you know.