RDP blocked in my company network, any workaround ?

Hello Guys,

RDP to a public IP is not allowed in my network due to firewall, company does not allow rdp (which goes through port 3389) to public IP's. Anyway, I've got a proxy to another network which hopefully will allow this RDP, but I can't figure out how to get RDP to use proxy settings, RDP has some weird thing called TS Gateway server, but my proxy needs special software to be used. So my questions are:

1 - Is it possible to route RDP through the proxy I've already got ?

2 - If not possible, can is there anything which I could connect (using anything except RDP ) then from there rdp to my public IP ?

Thanks a lot