[Asterisk-Users] PSTN Incoming call on real line disrupts VoIP call over DSL circuit

[Andres]

>
> They are separated. The answering machine is in another room, 
> connected to a normal phone jack, using a DSL filter to assure it 
> doesn't get the "noise" of the DSL line.
>
> The HT is connected to the DSL modem, and there are no POTS lines 
> connected to the FXO back-up port on the HT. In other words, the HT 
> has only the WAN (to DSL) and LAN (to PC) ports connected, and an 
> analog phone (a GE 5.8ghz handset) connected to it's FXS port. The 
> only other possible connection problem (which I think I tested and 
> rejected as a problem two months ago) is that there is a Y splitter 
> coming out of the jack with a filter for the real phone, and no filter 
> for the DSL modem (which is in front of the HT).
>
How about a problem with the 5.8Ghz phone itself?  Is the regular POTS 
line on another 5.8Ghz phone?  Two phones on the same frequency on 
different calls might be causing severe interference.  I can tell you 
everytime a call came into my house on the 2.4 Ghz POTS phone, my 
Linksys WRT54G would drop the wireless signal going to the laptop, so 
multiple devices on the same frequency don't play well together.

-- 
Andres
Technical Support
http://www.telesip.net