Subj : Linux Virtual Modem using VoIP?
To   : Karel Kral
From : Kai Richter
Date : Mon Mar 15 2021 08:19 am

Hello Karel!

15 Mar 21, Karel Kral wrote to Alexey Vissarionov:

 KK> What if I need to exchange sometimes something with people who are
 KK> still pure PSTN connected?

a) Let the POTS user dial in to an internet gateway and he could use IP to connect you.

b) Ask a node with POTS and IP to establish a direct route between those people and you and use that node as a gateway.

c) Get old hardware and a real modem. Even if you need an POTS/VOIP ATA converter it will be cheaper than the 100.000 for kickstarter project or your 100 share for the kickstarter. You will get the fun for finding the right Init-AT command for free.

d) Get old hardware, a real modem and your own POTS provider. No fun because Init ATZ.

e) Send encrypted mircoSD cards via snailmail.

f) Send a carrier pigeon.

Did i forget anything? Hm, yes but that's an option i don't like.

g) disconnect those people.

Because the initial question wasn't FTN related i would prefer option a.

h) establish an inmarsat link with those people.

Regards

Kai

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