Hello everyone. New here and looking for some help.
Is it possible to use Asterisk on a server and only use the PSTN? If so, how can I do this?
Is it possible to use a Cisco (or other brand) ATA to connect the PSTN telco lines to my network or do I have to use a VoIP service provider with these devices?
If it is not possible to use the ATA devices, is there another alternative so I won’t have to purchase a FXO/FXS card for the server?
I want to set this up for my small office, which only has 4 PSTN lines from the telco. I just want to add PBX functionality to the phone system and use IP phones.
Thanks to any and all who can help!!