This interface represents the SIP-ETag header, as defined by
RFC3903.
The SIP-ETag header is used by a server (event state collector) in a 2xx
response to PUBLISH in order to convey a unique entity tag for the published
state. The client may then use this tag in a
javax.sip.header.SIPIfMatchHeader to update previously published
state.
Sample syntax:
SIP-ETag: dx200xyz
A server must ignore Headers that it does not understand. A proxy must not
remove or modify Headers that it does not understand.
author: BEA Systems, NIST since: 1.2 |