Similar to OSIP

Kopete
Kopete
Mattermost
Mattermost
Microsoft Messenger for Mac
Windows Live Messenger#Microsoft Messenger for Mac
Microsoft Office Communications Server

Microsoft Office Communicator

Miranda NG
Miranda NG
MSN Web Messenger

MSN メッセンジャー

Pidgin
Pidgin (software)
Skype for Business
Skype for Business
Skype for Business Server
Skype for Business Server
Telepathy
Telepathy (software)
Windows Live Web Messenger
Windows Live Web Messenger
Windows Live メッセンジャー
MSN Messenger
Windows Messenger
Windows Messenger
Wire (ソフトウェア)
Wire (software)
Xfire
Xfire
Yahoo! Messenger
Yahoo Messenger
Zimbra
Zimbra
Aliwangwang

インスタントメッセージ
Instant messaging
Elgana

EncroChat
EncroChat
Google Duo
Google Duo
Google トーク
Google Talk
Signal (メッセージングアプリ)
Signal (software)
Jabbin

Slack (ソフトウェア)
Slack (software)