Signal Protocol
[ca] Protocol de Signal
[de] Signal-Protokoll
[fa] پروتکل سیگنال
[fr] Signal Protocol
[he] פרוטוקול סיגנל
[id] Protokol Signal
[it] Protocollo Signal
[ja] Signalプロトコル
[pt] Protocolo Signal
[ru] Протокол Signal