call server
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... maintain a canonical source of users and their multimedia
conferencing systems, so that multiple call servers from multiple
vendors, supporting multiple protocols, can all access the same data
...
... The following terms are used throughout the document:
* call server: a protocol-specific signalling engine that routes
video or voice ...
... entity is a SIP Proxy Server. Note that
not all signalling protocols use a call server.
* endpoint ...
... endpoints.
The use of a common, authoritative data source for call server,
endpoint, user, authentication ...
... IP telephones produced by a second provider, with signalling managed
by a call server produced by yet a third provider. Each of these
disparate systems can access the same underlying data source,
...
... endpoint. LDAP provides a
convenient storage location that can be accessed by both call server
and endpoint; thus it is possible to use the directory to support
...
... middleware. Service administrators need call servers that are aware
of enterprise directories to avoid duplication of account management ...
... endpoint information to be stored in a canonical data
source (the Directory), rather than local to the call server, so
that endpoints can be managed through manipulations of an
...
... endpoints can be managed through manipulations of an
enterprise directory, rather than by direct entry into the call
server;
4) support the creation of very large-scale distributed
...
... Annex D and HTTP Digest, respectively). These approaches require
that the call server have access to the password. Thus, if the call
server or H.350 ...
... that the call server have access to the password. Thus, if the call
server or H.350 directory is compromised, passwords also may become
...
... compromised. These weaknesses may be due to weaknesses in the
systems (H.350 directory or call servers) and their operation rather
than in H.350 per se.
...
... 5].
It is strongly encouraged that call servers and an H.350 directory
mutually authenticate ...
... Further, it is strongly encouraged that communications between H.350
directories and call servers or endpoints happen over secure
communication channels ...