[SR-Users] Anybody have a configuration file using lcr or mtree and dispatch?

Hi, Anybody have a working kamailio.cfg file that uses the lcr module? Or as Daniel has kindly pointed out a kamailio.cfg that uses mtree and dispatch modules? Thanks! --- Details for those interested (Excuse any lack of clarity due to incorrect use of any industry standard language. Please correct me if you have time.): Big picture: Be able to provide only a few SIP gateway IPs to PSTN and DID Carriers. These SIP proxy gateways will then be able to service incoming and outgoing INVITE traffic for thousands of PBXs. I am only interested in "switching" pure SIP traffic between PBXs and Carriers. In this case everything (normally) starts with an INVITE. From a PBX or Carrier (DID provider in this case) that must have it's IP number in a table (sole auth method). It also seems that we must "group" these gateways into PBXs and Carriers for more efficient use of prefixes (even though Carriers AND PBXs are just gateways identified by IP and associated with a prefix and other optional routing/switching decision making parameters). The "switch" then must, based on the prefix (or DID), forward the INVITE from a PBX to a Carrier (in the PSTN termination provider role). Or, if the INVITE is from a Carrier, forward to the PBX. I simplify greatly providing this traffic aggregation sip proxy "switch" example for others that may have similar needs in the future. Best regards, Gary