@techreport{miniero-rtcweb-http-fallback-00, number = {draft-miniero-rtcweb-http-fallback-00}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-miniero-rtcweb-http-fallback/00/}, author = {Lorenzo Miniero}, title = {{HTTP Fallback for RTP Media Streams}}, pagetotal = 19, year = 2012, month = aug, day = 7, abstract = {Almost all VoIP endpoints, especially SIP and RTCWEB ones, make use of RTP to tranport media frames in real-time and communicate with each other. Since RTP uses UDP, the presence of network elements that filter UDP packets and/or only allow some protocols like SMTP or HTTP to pass through would make such a communication very hard to accomplish, if not impossible. This draft describes a way to implement an HTTP Fallback for RTP media streams, that is, a way to effectively encapsulate RTP packets in HTTP messages in order to traverse proxies and firewalls.}, }