How to combine two service

Opentelemetry Defines [three different services](https://github.com/open-telemetry/opentelemetry-proto/tree/main/opentelemetry/proto/collector):

* common package contains the common messages shared between different services.
* trace package contains the Trace Service protos.
* metrics package contains the Metrics Service protos.
* logs package contains the Logs Service protos.

I want to know if there's a way to combine those services into one service(Maybe write a new service and don't use those three service definitions?), thus server just needs to listen only one tcp port, and client can send different data to the same server