"The best business telephones in the world."

I found on the wiki the link

http://wiki.snom.com/Networking/Virtual_Private_Network_(VPN)/de#Kann_das_Telefon_als_VPN-Router_benutzt_werden.3F

but do not understand, how to "push" the commands to the phone.

Would you please be a little more specific on how to do it?

Thanks

Jan-Hendrik