ðɪ ˈɛnd sˈɪstəmz jˈuːs stˈændɚd tˌiːsˌiːpˈiː wɪð nˈoʊ mˌɑːdɪfɪkˈeɪʃənz, ænd duːnˌɑːt nˈiːd tə nˈoʊ ʌvðɪ ɛɡzˈɪstəns ʌvðə pˌiːˌiːpˈiːz ɪn bᵻtwˈiːn.
The end systems use standard TCP with no modifications, and do not need to know of the existence of the PEPs in between.