Tony Hoyle [EMAIL PROTECTED] wrote: > [EMAIL PROTECTED] wrote: > > I hear the exact same noise on 2 units I purchased a few months ago. > > > > I've been in contact with sipura support and they are willing to try > > RMA'ing one of my units. As soon as I can get to the site with the > > sipura, I'll be sending it in. > > > > I'll post my results to the list. > > > > btw, I'd have to agree that its not comfort noise, its very similar > > (only much louder) to the "hiss" that the old digium fxs modules had on > > the tdm boards. > > > Did you manage to resolve this? It's really annoying, and is a constant > hiss even when making PBX-only calls (eg. '123' for the time, which is > executed entirely by the dialplan). > > I tried tweaking some of the 'advanced' options and didn't get > anywhere... if there's no solution I'll just RMA it. > Try playing with the "FXS Port Impedance" in the "Regional" settings. Mine is set to 600. I imagine that a mismatch here could cause that sort of thing.
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