a busy/dead line signal? By default callers will be routed to your voicemail when the vonage servers cannot contact your Cisco ATA-186 box. Alternatively, you can set up an secondary number to use when your connection is down (eg: a POTS number). You set this up using a web interface to your Vonage account. Can I send/receive FAXes with it? Yes. However ... most people report having limited success with faxing.
Landisville dial up internet access, Landisville, PA up internet access dial Landisville
Landisville up internet access, dial Pennsylvania, Landisville dial up internet access