No, you cannot use your own adapter.
You must use the Grandstream HT-801 Adapter provided by Fongo for Fongo's Home Phone service.
- Here is information about the Grandstream HT-801 Adapter
- Here are installation instructions for the new adapter
We setup our adapters to allow us to easily access them for when you need support from us.
Other providers may allow you to use your own adapter, but they likely won't provide the same level of support as Fongo, since it's difficult to support customers who have different adapters and programmed them themselves.