13.9  

Applications over IP 
 

13.9.1  

Call Detail Recording Central (CDRC) via IP 
 
In HiPath 3000/5000, you can start up the central call data output function only once, which means that it is available to only one application at a time. Three different modes exist to support the various requirements of the different applications.

Model-specific data  

 Topic  
 HiPath 3800  
 HiPath 3550  
 HiPath 3500  
 HiPath 3350  
 HiPath 3300  
Feature available in  
 x  
 x  
 x  
Hardware requirements  
 HG 1500 / LIMS  
   
   
Software requirements  
 V5.0 or later  
 V1.2 or later  
 V1.2 or later  

13.9.1.1  

TFTP Client in HiPath 3000/5000 
Controlled by a programmable timer and a fixed threshold value determining the call data buffer capacity (around 80 percent of the call data buffer full), the TFTP client (HiPath 3000/5000) sends call data to the TFTP server (external application). If the system cannot set up a connection to the TFTP server, it addresses an alternative server. If this server is also unavailable, it outputs an SNMP trap or error message ("Unable to output data"). The system tries to set up another connection every 60 seconds. A call data buffer overflow causes an error message to be entered in the error history file.

13.9.1.2  

TCP Client in HiPath 3000/5000 
When call data records accumulate, the TCP client (HiPath 3000/5000) sets up a TCP/IP connection to an external TCP server (external application) and transmits the data. The connection remains active continuously so that the system can send any further accumulated data, transmitting each data record separately.

13.9.1.3  

TFTP Server in HiPath 3000/5000 
The external application (TFTP client) requests output of the call data records. To do this, the application must set up a connection and indicate the service (GET gez.txt), after which it receives all accumulated call data records. It releases the connection after the transfer.
The application's request for call data can be controlled automatically or using an SNMP trap (see Section 13.10.2 "SNMP functions"). HiPath 3000/5000 sends the SNMP trap ("data available") to the external application, generating the trap using a programmable threshold value determining the call data buffer capacity (0 to 80 percent of the call data buffer full).