transport protocols multimedia session initiation sdp iana considerations

sip early media disposition type session initiation content-disposition

requirements ipv6 sip network security cellular networks qos multimedia session initiation 3gpp authentication

security considerations transport protocols standards session description protocol media types streaming media session initiation internationalization sdp iana considerations

relays peer-to-peer security session initiation msrp message forwarding tls tcp authentication binary data

user agent answer-mode sip priv-answer-mode security management session initiation audio standards track authentication

requirements security considerations sip 503 response traffic engineering overload session initiation network management load balancing