@zaphodb we created the OCTOI (Osmocom Community TDMoIP) network some time ago where you can use ISDN peripherals remotely all year long and connect to hosted services and peers around the globe: https://osmocom.org/projects/octoi/wiki/Community_TDMSS7_Network - you need an E1 capable PBX and an icE1usb at your end, see https://osmocom.org/projects/octoi/wiki/Getting_Started #retronetworking
GNU social JP is a social network, courtesy of GNU social JP管理人. It runs on GNU social, version 2.0.2-dev, available under the GNU Affero General Public License.
All GNU social JP content and data are available under the Creative Commons Attribution 3.0 license.