Jingle (XEP-0166 and XEP-0167) is the voice and media signalling protocol developed by Google, Collabora, Yate, Tandberg and Jabber Inc (the latter two now part of Cisco), and standardized within the XSF. Seen by many as key for an open-standard consumer VOIP system to compete with Skype and others, the specifications moved from Experimental to Draft status two years ago, and have been implemented