SPA400 loses or doesnt detect analogue line

gavin.tobin · ‎03-02-2012

Hello,

I have a SPA400 in place for years but was only using it for voicemail which worked great.

Lately I needed to reconfigure it to work with a single analogue line plugged into Line 1. But the SPA400 showed the line as On-Hook with 0V (somethimes it shows off hook with 0V). I have tried all the other analogue ports with the same result.

After a full factory reset and a setup (both manual & wizard) the SPA400 still showed the same problem. I found that if I just kept restarting the device it would eventually detect the analogue line @55V. If it stayed running after this it would be OK but it also loses the analogue line after a random period of time.

Locale is Ireland.
Firmware is 1.1.2.2
SPA400 Config Attached

Has anyone seen this snag before and can it be fixed?

Regards,

GT

nseto · ‎03-09-2012

The default line impedance setting is 600 for U.S. Ireland should be 270+750||150nF. Try that change and see if it detects the line properly.

gavin.tobin · ‎03-13-2012

I already have that set.

Moved up to 1.1.2.3 and still have same problem.

It is random but multiple restarts or power cycles eventually gets the line up.