I have recently ported my former PTSN landline as a VOIP line to AAISP
As I'm using a Gigaset N300A IP, my previous call screening device (Truecall) which is PTSN based no longer works and consequently I am being plagued by unwanted calls!
One solution I have considered to reinstate the Truecall device is to purchase a ATA Telephone Adapter - eg say a Granstream HT802 and use this (rather than the N300A) as the VOIP connection endpoint. Essentially I would be reverting to using the PTSN functionality of the N300A. However I note that the Truecall website does not recommend using ATA adapters.
Does anyone know of a comparable device that works with VOIP or any software (eg running on say a Raspberry Pi) that could provide such functionality ?
Looking around there appears to be a dearth of such devices, but I cannot but help think as telephony migrates to VOIP this will become a wider issue.