OBi1062 audible pulsing/humming sound

[Melp]

Hello,

I am using my new OBi1062 with Google Voice.  Short calls are fine, but after about 5 minutes I begin to hear an intermittent humming sound that pulses.

I am trying to figure out if it has to do with the phone hardware or the Google Voice service.

If anyone has experienced the same issue and can offer any tips on a fix, it would be much appreciated.

Thank you.

[SteveInWA]

That sounds (no pun intended) like a hardware failure to me.  Probably a bad power adapter.  Contact Obihai for support.

[Melp]

Will do.  Thanks for the help.