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Mattermost
Mattermost
Microsoft Lync
Microsoft Messenger for Mac
Windows Live Messenger#Microsoft Messenger for Mac
Microsoft Office Communications Server
Microsoft Office Communicator
Microsoft Teams
Microsoft TeamsMiranda NG
Miranda NG
MSN Web Messenger
MSN メッセンジャー
Mumble
Mumble (software)OSIP
OSIP
Pidgin
Pidgin (software)
Skype
Skype▼-1 trendsSkype for Business
Skype for BusinessSkype for Business Server
Skype for Business Server
Telegram
Telegram (software)Telepathy
Telepathy (software)
Trillian
Trillian (software)Windows Live Web Messenger
Windows Live Web Messenger
Windows Live メッセンジャー
MSN MessengerWindows Messenger
Windows Messenger
Wire (ソフトウェア)
Wire (software)Xfire
Xfire
Yahoo! Messenger
Yahoo Messenger
Zimbra
Zimbra
インスタントメッセージ
Instant messaging
WeChat
WeChat
Elgana