As you can see it works locally on Ozeki, but I am using playSMS. So my question is this; is it possible to route my outbound SMS to my locally connected GSM Modem (Ostent Wavecom single SIM) from my website where I have playSMS installed on?
I see support for Gammu and Kannel but correct me if I am wrong, that is assuming PlaySMS is installed on the same ubuntu box which a GMS modem is on, which it isn’t. My ultimate aim is to use playSMS with my GSM Modem I have attached to my PC (eventually home server) rather than expensive service4s like Twilio or Nexmo. How can I get playSMS on Digitial Ocean talking to my GSM modem on my local machine?
Apologies if this has been asked before… Does a guide currently exist? 
Appreciate any help!