A third party that owns and operates payphones connected to the public switched telephone network (PSTN) and located on another party's premises. See also pay telephone and PSTN.
"PSP." YourDictionary, n.d. Web. 16 August 2018. <http://www.yourdictionary.com/psp>.
PSP. (n.d.). Retrieved August 16th, 2018, from http://www.yourdictionary.com/psp
(PlayStation Portable) See PlayStation.