| Instant Message Disposition Notification (IMDN). | 0 | 0.34 | 2009 |
| Session Initiation Protocol (SIP) Extension for Partial Notification of Presence Information | 7 | 0.85 | 2008 |
| Presence Information Data Format (PIDF) Extension for Partial Presence. | 0 | 0.34 | 2008 |
| Functional Description of Event Notification Filtering. | 0 | 0.34 | 2006 |
| An Extensible Markup Language (XML) Based Format for Event Notification Filtering | 4 | 0.61 | 2006 |
