A new Request for Comments is now available in online RFC libraries. RFC 7195 Title: Session Description Protocol (SDP) Extension for Setting Audio and Video Media Streams over Circuit-Switched Bearers in the Public Switched Telephone Network (PSTN) Author: M. Garcia-Martin, S. Veikkolainen Status: Standards Track Stream: IETF Date: May 2014 Mailbox: miguel.a.garcia@ericsson.com, simo.veikkolainen@nokia.com Pages: 39 Characters: 92699 Updates/Obsoletes/SeeAlso: None I-D Tag: draft-ietf-mmusic-sdp-cs-23.txt URL: http://www.rfc-editor.org/rfc/rfc7195.txt This memo describes use cases, requirements, and protocol extensions for using the Session Description Protocol (SDP) offer/answer model for establishing audio and video media streams over circuit-switched bearers in the Public Switched Telephone Network (PSTN). This document is a product of the Multiparty Multimedia Session Control Working Group of the IETF. This is now a Proposed Standard. STANDARDS TRACK: This document specifies an Internet standards track protocol for the Internet community,and requests discussion and suggestions for improvements. Please refer to the current edition of the Internet Official Protocol Standards (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited. This announcement is sent to the IETF-Announce and rfc-dist lists. To subscribe or unsubscribe, see http://www.ietf.org/mailman/listinfo/ietf-announce http://mailman.rfc-editor.org/mailman/listinfo/rfc-dist For searching the RFC series, see http://www.rfc-editor.org/search For downloading RFCs, see http://www.rfc-editor.org/rfc.html Requests for special distribution should be addressed to either the author of the RFC in question, or to rfc-editor@rfc-editor.org. Unless specifically noted otherwise on the RFC itself, all RFCs are for unlimited distribution. The RFC Editor Team Association Management Solutions, LLC