search for: varistor

...on their Polycoms to make the remote party audible, but that ends up causing distortion which is bad enough to be irritating. The volume level does seem to depend on the exchange. For instance, all calls to a specific exchange are at the same general volume level. Now, standard analog sets have a varistor circuit to compensate for these variations in signal level, but it would appear that the TDM cards don't incorporate this kind of dynamic gain control. Zaptel allows you to control the transmit and receive gain at the interface card, but isn't that what fxotune is supposed to do? Tune thos...

Hi all, Really excited to be using Asterisk and learning about VOIP and PBX's. I'm a complete beginner at telephony but have built and installed Asterisk 1.4.5 and read several of the Asterisk books online and have successfully connected to FWD with IAX2 and to GIZMO using SIP. Just purchased a Motorola Wildcard X100P and installed it into a clone PC running Fedora Core 6. Analog

I think the time for me to get involved in NUT documentation has come again. Late last week I had to buy a UPS under time pressure. The Eaton unit that thus project gifted me with in 2006(?) died during a severe thunderstorm watch, so it was off to MicroCenter to get a replacement pronto. I wound up buying an APC BN700MC. It was what they had in the performance range I needed. The removable