[QUOTE=tritch;66465]You should probably continue to work with Voipo’s support team to resolve this issue....

I intend to.

Thank you for your detailed explanation on the possible existence of a firewall within the DSL modem. I can confirm there is a sip address and port number listed on the Received: line, under Connected Devices.

Not being familiar with the setup and configuration details of the Westell DSL modem I will have to spend more time in trying to put this device into the “bridge’ mode.

I acknowledge, no manufacturer of an electronic device can be held responsible for damage to a product that may occur during a local lightning strike. In the event of such an unfortunate circumstance I would like to hope VOIPO could replace the ATA for a reasonable price. The fact that damage may occur with or without it being connected to the home POTS wiring always exists as a possibility.
Your reference to the VOIPO forum discussion is appreciated.
My concern is that, at the time of my purchase, there was no information stating the HT502 must NOT be connected to the home wiring system. Only in the latest Installation Guide is there any mention of: (do not use in-home telephone wiring/POTS).
While no REN number exists, maybe it should be specified.