Instant Messaging
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... could no doubt be applied to the resolution of other URI schemes that
are unrelated to instant messaging and presence.
CPIM ...
... of these attributes are defined by CPIM and CPP, many instant
messaging and presence protocols today support the use of URIs to
reflect the source and destination ...
... principal's endpoint supports
multiple instant messaging applications, for example, then a domain
that identifies that host ...
... compatibility with clients that
support only one instant messaging protocol. A client would look up
the corresponding record to the supported protocol, and learn how to
...
... Service field of the SRV record is
"_im" for instant messaging and "_pres" for presence (matching their
respective URI schemes). However, the advertisement of these
...
... services in the DNS is incomplete if it does not include the protocol
that will be used to instantiate the instant messaging or presence
operations. Thus, the Protocol field of the SRV record ...
... SRV record contains an
IANA-registered label corresponding to the underlying instant
messaging or presence protocol being advertised (see Section 8 for
more information on valid ...
...
Some clients may support multiple instant messaging or presence
protocols; in these cases they may make several such SRV queries ...
... Once a client lexically identifies a domain to which instant
messaging or presence operations will be delivered for processing, a
DNS lookup MUST be performed to resolve the domain ...
... security considerations beyond those described
in the requirements for instant messaging and presence ([6]) and the
SRV ...
... of different message transports, they must be associated with a
specific instant messaging or presence service.
...
... created two independent registries: the Instant Messaging SRV
Protocol Label registry and the Presence SRV Protocol Label registry ...
... Day, M., Rosenberg, J., and H. Sugano, "A Model for Presence and Instant Messaging", RFC 2778, February 2000. ...
... Day, M., Aggarwal, S., and J. Vincent, "Instant Messaging / Presence Protocol Requirements", RFC 2779 ...