Unfortunately we cannot confirm this, as it has not been tested by us.
There are many telephone adapters and routers themselves, that can simulate PSTN lines, however , there is no guarantee our PSTN
products, including the SD1+, will function correctly, as they were never designed to work on this type of arrangement/digital line.
You should also be aware that the SD1+ is obsolete and have been replaced by the SD-LTE;
Eaton Universal 4G speech dialler [SD-LTE] - £240.00 : | Best Price Promise | Security Warehouse Professional products
Kind Regards,
Security Warehouse Technical Support