Point-to-Multipoint with Connect WAN 3G

I have a Point-to-Multipoint radio communication system. The system is basically based on 1 Master that sends a requests to all the slaves. The address of the Slave that must answer is on the request sent by the master. Both, request and response are pure serial data. My question is: will it be possible to implement this system using Connect WAN 3G in both sides (Master and Slaves) of the communication by using Python?

This is potentially possible, but we really need more information to answer. Are these serial devices? What protocol is being used. If Modbus, the Connect WAN 3G can do Modbus routing.