Asterisk PBX + a T1/PRI card and service from a local telco provided basically unfettered access to SS7 when I toyed with it like 15 years ago.. I'm guessing no

Asterisk PBX + a T1/PRI card and service from a local telco provided basically unfettered access to SS7 when I toyed with it like 15 years ago.. I'm guessing not much has changed?