GitHub - jantenhove/P1-Meter-ESP8266: Software for the ESP8266 that sends P1 smart meter data to Domoticz (with CRC checking)
5 meter adsl cable rj11 - Colour White
Telephone adapter for Austria, 6/4 RJ11 plug - 3x TSS jack 0.1m, 2,13 €
RJ45 and RJ11 - YouTube
HQ 1.5 2m KRONE voice module test cord 110 to RJ11 test head telephone dedicated P wire test cable 110 dedicated voice test line|line pro|line fireline - interactive ups - AliExpress
Telefonanschlusskabel – Wikipedia
Telefonanschlusskabel – Wikipedia
DELTACO modulkabel, 6P4C (RJ11) til 6P4C (RJ11), 2 m, hvid | Elgiganten
Registered jack - Wikipedia
networking - Convert RJ11 to ethernet cable? - Super User