cc_prepaid_xmlrpc                contributed by Todd Lewis 

This module implements the accounting functions for sbc call
control.

Instead of maintaining a local in memory map of credits, as the 
cc_prepaid module does, it executes the getCredit and subtractCredit
functions via XMLRPC to an accounting server:

prepaid system components using cc_acc_xmlrpc

 +------------------------+
 |       SEMS             |
 |                        |
 |    +-------------+     |
 |    | sbc         |     | 
 |    +-------------+     | 
 |    |             |     |
 |    |             |     |
 |    +-------------+     | 
 |       |                |
 |       |DI getCredit    |
 |       |   subtractCredit
 |       v                |
 |   +-----------------+  |             +--------------------+
 |   |cc_prepaid_xmlrpc|  |             |XMLRPC              |
 |   +-----------------+  | XMLRPC      |  accounting server |
 |   |                 | -------------> |                    |
 |   |                 | -------------> |                    |
 |   +-----------------+  | getCredit   +--------------------+
 |                        | subtractCredit
 |                        |
 |                        |
 +------------------------+
 
acc system components using cc_acc

 +------------------------+
 |       SEMS             |
 |                        |
 |    +-------------+     |
 |    | sbc         |     | 
 |    +-------------+     | 
 |    |             |     |
 |    |             |     |
 |    +-------------+     | 
 |       |                |
 |       |DI getCredit    |
 |       |   subtractCredit
 |       v                |
 |    +-------------+     |
 |    | cc_prepaid  |     | 
 |    +-------------+     | 
 |    | credits     |     |
 |    |   (map)     |     |
 |    +-------------+     | 
 |        ^               |
 |        |DI addCredit   |       
 |        |   setCredit   |
 |        |               |
 |    +-------------+     |
 |    |  xmlrpc2di  |     | 
 |    +-------------+     | 
 |    |             |<---------- XMLRPC addCredit
 |    |             |<---------- XMLRPC setCredit
 |    +-------------+     | 
 |                        |
 |                        |
 +------------------------+
 
a python example XMLRPC server can be found in server/xmlrpcserver.py.

This module needs the xmlrpcpp library (see apps/examples/xmlrpc2di module
for details).