Setting up ppp with M2M Modem + SIM

Hello All,

May be off-topic not related to vyos, but i use a M2M Modem + SIM which is serviced by ppp inside a Rasberry Pi OS on one end.

Other end Trying to push some data or connect to the remote Linux/Ubuntu Machine from Rasberry Pi which controls M2M Modem+SIM.

I see the connection works pretty good with ethernet which is eth0.

what are the steps i need to do on the Ubuntu server to ensure that there is seamless connection between M2M SIM and Linux/Ubunu PC

Thanks in advance, appreciate responses on ppp client-server connection

Kind Regards