I'm using kamailio with the dispatcher module. 

I would like to know if there are some API to get an average of the service execution 

time. In other words, I need to get the time between sending the request and 

receiving the response for every request, but also to have this values separate 

per server.

I know also that this could be a little heavy for the dispatcher, but for some 

test I need this information. 

Thanks in advance, 

Giuseppe