
Web Applications
128 4600 Series IP Telephones Application Programmer Interface (API) Guide
Figure 21: High-Level Thin Client Architecture
As Figure 21 shows, the Directory application and its administration are co-resident with an
HTTP server. Administration screens allow all Directory application parameters like the directory
database server’s IP Address, allowable search fields, etc. to be set using a PC browser. The
Web browser can be co-resident on the Directory application server.
When a 4620 IP Telephone user starts a directory search, the user’s browser sends the search
criteria to the Directory application. The Directory application sends a query based on
administered parameters to the directory database, usually located on a separate server. The
directory database server then returns search results to the Directory application. The Directory
application formats the results in the appropriate markup language and sends the results back
to the end user. The user then has several options regarding the search results.
APPLICATION SERVER
HTTP
SERVER
DIRECTORY
ADMINISTRATION
DIRECTORY
APPLI CATI ON
ADMINI STRATI ON
FILE
Telephone
DIRECTORY
DATABASE
SERVER
WML
HTML
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