My ser server is utilizing nathelper and rtp proxy. I have user agents on two different networks, and each behind their own nat, communicating successfully.

I’m having difficulty however having two user agents on the same network behind the same nat communicating with each other. Both user agents register on the SER server. When I call one user agent from the other, a connection is made, but voice cannot be heard. I think rtp proxy is confused. Has anyone implemented this successfully?

Thanks in advance.