[Serusers] ser together with rtpproxy

[Pamela Weis]

Hello,

I wanted to try out ser together with rtpproxy.
When starting a call between two clients rtpproxy returns the following:

rtpproxy: rtpproxy started, pid 4302
rtpproxy: command syntax error (Option -u)
rtpproxy: command syntax error (Option -l)
rtpproxy: command syntax error (Option -l)
rtpproxy: got signal 2
rtpproxy: rtpproxy ended

I assume that there is a problem with the ser configuration. Can someone 
explain to me how I've to configure ser that it works together with 
rtpproxy?

Any help is greatly appreciated.

Pamela Weis