[187] XEP-0082: XMPP Date and Time Profiles ( ( 版)) http://xmpp.org/extensions/xep-0082.html
[1] XEP-0090: Legacy Entity Time () https://xmpp.org/extensions/xep-0090.html
[2] XEP-0202: Entity Time () https://xmpp.org/extensions/xep-0202.html
[3] XEP-0091: Legacy Delayed Delivery () https://xmpp.org/extensions/xep-0091.html
[4] XEP-0203: Delayed Delivery () https://xmpp.org/extensions/xep-0203.html
[5] XEP-0009: Jabber-RPC () https://xmpp.org/extensions/xep-0009.html
[6] XEP-0054: vcard-temp () https://xmpp.org/extensions/xep-0054.html#dtd