헤이텔 (HeyTell)
Voxilate, Inc.
Walkie Talkie App: VoicePing
www.SmartWalkie.com
Google Voice
Google LLC
HiPal - Walkie Talkie
Vpings Inc.
Voxer 워키토키 Walkie Talkie PTT
VoxerPro LLC
Signal - 안전한 메신저
Signal Foundation
라인 LINE
LINE (LY Corporation)
텔레그램 공식 앱 Telegram
Telegram FZ-LLC
카카오톡 KakaoTalk
Kakao Corp.