Basic Tab
username : your account name without @gmail.com [계정명 입력 (@gmail.com은 입력하지 않음)]
protocol : xmpp
domain : gmail.com
resource : Home

Advanced Tab
Require SSL/TLS, Force old port (5222), Allow plain text .... : All Unchecked [세가지 옵션 다 체크해제]
Connect Port: 5222
Connect Server: talk.google.com
File Transfer Proxies : proxy.jabber.org

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