The Cable TV company has given me a two line ATA/Modem device made by Arris. I figured on taking the FXS ports on it and connecting them to my channel bank as additional lines. When I tested the lines with an analog phone the line worked great, very clear and loud. When I connected to the channel bank, the calls were great until they terminated after about 30 seconds. A few more tries confirmed it was random, sometimes it hung up right away, sometimes after a few seconds. Any ideas why? The Channel bank was set to FXO_LS in it's configuration, and they confirmed the port is loopstart. Any help appreciated. -- Chris Mason