The IESG has received a request from an individual submitter to consider the following document: - '3rd-Generation Partnership Project (3GPP) SIP URI Inter Operator Traffic Leg parameter' <draft-holmberg-dispatch-iotl-02.txt> as Proposed Standard The IESG plans to make a decision in the next few weeks, and solicits final comments on this action. Please send substantive comments to the ietf@ietf.org mailing lists by 2015-01-08. Exceptionally, comments may be sent to iesg@ietf.org instead. In either case, please retain the beginning of the Subject line to allow automated sorting. Abstract In 3rd-Generation Partnership Project (3GPP) networks, the signalling path between a calling user and a called user can be partioned into segments, referred to as traffic legs. Each traffic leg may span networks belonging to different operators, and will have its own characteristics that can be different from other traffic legs in the same call. The directionality in traffic legs relates to a SIP request creating a dialogue and stand-alone SIP request. A traffic leg might be associated with multiple SIP dialogs, e.g. in case a B2BUA which modifies the SIP dialog identifier is located within the traffic leg. This document defines a new SIP URI parameter, 'iotl', which can be used in a SIP URI to indicate that the entity associated with the address, or an entity responsible for the host part of the address, represents the end of a specific traffic leg (or multiple traffic legs). The 'iotl' parameter is defined in order to fulfil requirements from the 3GPP. The file can be obtained via http://datatracker.ietf.org/doc/draft-holmberg-dispatch-iotl/ IESG discussion can be tracked via http://datatracker.ietf.org/doc/draft-holmberg-dispatch-iotl/ballot/ No IPR declarations have been submitted directly on this I-D.