service
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...
[IMP-REQS] also stipulates that presence services must be separable
from instant messaging services; i.e., it must be possible to use the
...
... IMP-REQS] also stipulates that presence services must be separable
from instant messaging services; i.e., it must be possible to use the
protocol to provide a presence service, an instant messaging service ...
... from instant messaging services; i.e., it must be possible to use the
protocol to provide a presence service, an instant messaging service,
or both. Although the text of this memo assumes that implementations
...
... instant messaging services; i.e., it must be possible to use the
protocol to provide a presence service, an instant messaging service,
or both. Although the text of this memo assumes that implementations
and deployments ...
... deployments will want to offer a unified instant messaging and
presence service, there is no requirement that a service must offer
...
... presence service, there is no requirement that a service must offer
both a presence service and an instant messaging service ...
... requirement that a service must offer
both a presence service and an instant messaging service, and the
protocol makes it possible to offer separate and distinct services ...
... service must offer
both a presence service and an instant messaging service, and the
protocol makes it possible to offer separate and distinct services
...
... presence service and an instant messaging service, and the
protocol makes it possible to offer separate and distinct services
for presence and for instant messaging.
...
...
o headline -- The message is probably generated by an automated
service that delivers or broadcasts content (news, sports, market
information, RSS feeds, etc.). No reply ...
... Although the 'type' attribute is OPTIONAL, it is considered polite to
mirror the type in any replies to a message; furthermore, some
specialized applications (e.g., a multi-user chat service) MAY at
their discretion enforce the use of a particular message type (e.g.,
...
... notifications only as defined above. (Note:
While presence information MAY be provided on a user's behalf by an
automated service, normally it is provided by the user's client.)
...
... presence probe
from a subdomain of the server's hostname or another such trusted
service, it MAY provide presence information about the user to
that entity). Specifically:
...
... "set" to the user, the user's server MUST return to the sending
entity a <service-unavailable/> stanza error, since this is the
...
... stanza (i.e.,
neither deliver it nor return an error) if it is a presence
stanza, (b) MUST return a <service-unavailable/> stanza error to
...
... sender if it is an IQ stanza, and (c) SHOULD return a
<service-unavailable/> stanza error to the sender ...
... nor return an error) if it is a presence stanza, (b) MUST return
a <service-unavailable/> stanza error to the sender ...
... reply to the stanza on behalf of the user; if not, the server
MUST reply with a <service-unavailable/> stanza error.
...
... not enabled, the server MUST return to the sender a
<service-unavailable/> stanza error. (Note: Offline message
...
... storage and message forwarding are not defined in XMPP, since
they are strictly a matter of implementation and service
provisioning.)
...
... stanza on behalf of the user; if not, the server MUST reply
with a <service-unavailable/> stanza error.
...
... 1. First attempt to resolve the foreign hostname using an [SRV]
Service of "xmpp-server" and Proto of "tcp", resulting in
resource records such as "_xmpp-server._tcp.example.com.", as
...
... address record resolution fails, attempt to
resolve the "_im" or "_pres" [SRV] Service as specified in
[IMP-SRV], using the "_im" Service ...
... Service as specified in
[IMP-SRV], using the "_im" Service for <message/> stanzas and the
"_pres" Service ...
... Service for <message/> stanzas and the
"_pres" Service for <presence/> stanzas (it is up to the
implementation how to handle <iq/> stanzas ...
... instant messaging, and is not required to support both if only a
presence service or an instant messaging service is desired.
...
... instant messaging, and is not required to support both if only a
presence service or an instant messaging service is desired.
...
... stanza for a user who does not exist, the use of the
<service-unavailable/> error condition helps protect against
...
... Instant Messaging SRV Protocol Label registry for
protocols that can provide services that conform to the "_im" SRV
Service ...
... services that conform to the "_im" SRV
Service label. Because XMPP is one such protocol, the IANA registers ...
... SRV Protocol Label registry for protocols that can
provide services that conform to the "_pres" SRV Service label.
...
... provide services that conform to the "_pres" SRV Service label.
Because XMPP is one such protocol, the IANA ...
... Gulbrandsen, A., Vixie, P., and L. Esibov, "A DNS RR for specifying the location of services (DNS SRV)", RFC 2782prop, February 2000. ...