Linksys SPA3102 suitable for the required task.
It has 1 port FXS (for landline phone) and 1 FXO port (phone line).
Connect — set up in the admin — probressive the required ports and we get the desired result, without using servers.
Isaias.Ki answered on October 8th 19 at 01:52
To purchase a pstn — voip gateway, for example. you can just adapter, a standard phone to connect to asterisk,
then he hang up on urban telephony. can be contrary to city the phone was at home, and to connect with your favorite phone. it all depends on the task
kaylah.Friesen answered on October 8th 19 at 01:54