Similar to TISPAN
VoIP
Voice over IP
050plus
Brekeke PBX
Brekeke PBXBrekeke SIP Server
Comm
FaceTime
FaceTimeGizmo5
Gizmo5
Inter-Asterisk eXchange
Inter-Asterisk eXchange
Jami
Jami (software)Jitsi
Jitsi▲1 trendsMegaco
H.248
Messenger (ソフトウェア)
Facebook MessengerMGCP
Media Gateway Control Protocol
Mumble
Mumble (software)OSIP
OSIP
Skype
Skype
Tango (アプリケーション)
Tango (software)
TeamSpeak
TeamSpeak
Tox (プロトコル)
Tox (protocol)VoipBuster
WIRES-X
Wide-coverage Internet Repeater Enhancement System
Asterisk (PBX)
Asterisk (PBX)
Ekiga
Ekiga
1ヶ国限定プラン
Empathy (ソフトウェア)
Empathy (software)カカオトーク
KakaoTalk
Google ハングアウト
Google Hangouts
Google ボイス
Google Voice
