Braucht jemand 150 Stunden gratis #Internet? Für #Modem, #ISDN und sogar schon für #DSL. Toll, was #AOL alles bietet
@MikaKpk So basically you DIY one if those cheap "#GSMoverIP" boxes?
Unless you need like #ISDN and other features, something like a Tenda 4G06 is likely gonna work fine...
Just spent half day reconfiguring #SIP trunks on #FreePBX and #Asterisk (using chan_pjsip) as one of our providers silently yoinked #IAX2 support - #VOIP is as cursed if not more so than #PSTN / #ISDN circuits, except you don't have to crawl around as much in corners and roofspaces amongst spiders, mouse-like rodents and possibly snakes (if you have them in your country), and there's less chance of ending up on the wrong side of 100-120 volts (either AC or DC, depending on whether its ringing voltage or the strong DC voltage that British Telecom and others used to send down certain ISDN lines in 90s/00s)
tonight we'll have a review of the #39c3 ISDN/PSTN network as first RetroNetCall of 2026. Join us for a chat about how the network was built, how well it worked, what improved over #38c3 and what to do better at #40c3 - https://osmocom.org/news/320 #retronetworking #ISDN
@SnowBlind2005 yeah but it kinda errors out for some reason. It doesn't like the dialup parameters like phone number...
Still, @ubuntu should either have #dialup (& #ISDN) settings in the control panel or something like it.
などと言っていたら、#ISDN 2B通信のデモが上がっていた
Do you remember ISDN? https://youtu.be/rQfy8T-VOs4?
Make sure to bring your modems, fax machines, ISDN terminal adapters, phones, BTX terminals, Minitel, video phones and other #retronetworking gear to #39C3 and get connected to the on-site #ISDN network. More information at https://isdn-museum.de/ccc/39c3 #retronetworking #isdn #telephony
Last minute edition to the three additional Nokia EKSOS V5.2 access multiplexers: wooden stands/feet for mechanical protection and air convection. This is where your subscriber line terminates. 39C3 has more ISDN/POTS points of presence across the #39c3 venue than 38C3. #retronetworking #aufbauleaks #isdn
ISDN and POTS subscriber line termination equipment, SDH multiplexers, test equipment, fax machines, fax server, NTBAs, cables, postcards, stickers etc. fully loaded and tomorrow morning on its way to #39c3 #aufbauleaks #isdn #retronetworking
@bitnarrator schön, wenn jemand ordentlich vorbereitet mit installierten ISDN-Treibern auf die Veranstaltung kommt. #39c3 #isdn #retronetworking
#ISDN adjecent noob question:
The PDH (T1/E1 and stuff) had this problem that each sender had independent clock, which could be slightly faster or slightly slower than the mux, so after some time it may not have sent the next portion of bits when the mux needs to fill its slot in the frame, or it may've sent two.
And SDH claims to solve it by running the whole network on a shared clock.
But how is that clock distributed?
Don't you need an equal-delay clock tree like in an IC?
Neu im #CCC Event-Blog: Telefonie auf dem #39C3
Alle Infos zu Vorbereitung, Hardware, SIM/eSIM und Betrieb vor Ort findet ihr im Blogpost:
https://events.ccc.de/2025/12/23/39c3-poc/
New on the CCC event blog: Telephony at 39C3
Find all details on preparation, hardware, SIM/eSIMs and on-site operation here:
https://events.ccc.de/en/2025/12/23/39c3-poc/
#ChaosCommunicationCongress #Telephony #DECT #SIP #GSM #ISDN #amazingtimetomarket
Wie geht heute "Festnetz"? Mein knapp 30 Jahre altes ISDN Telefon scheint seinen Geist aufgegeben zu haben. Ich brauche nun Ersatz. Aber wie und was nimmt man in 2025? Wir haben ja jetzt VOIP. Ich brauche ein System, das 10 Nummern verarbeiten kann und mind. 3 ABs hat. Einfach 2,3 DECT Phones mit AB an den Router von O-Dings-Phone-Bumbs hängen? Scheint mir fast zu langweilig 😁 Gibts dabei was zu beachten? Oder besser eine spezielle Hardware/Software Lösung? Einen kleinen Raspberry aufsetzen? Hat jemand Tipps?
@linux @linux #telefon #ISDN #VOIP #kommunikation #phone #telefonieren @raspberrypi