I think you should investigate more the nature of the restriction, because I'm pretty sure it's got nothing to do with TTL.
No I'm absolute sure
Cell operator determines what i using AP by changed Ttl. When TTL packet comes via AP its size decreases at 1. For example: TTL packet size on connected device = 65, then it comes via AP it size became 64. AP device have TTL=65 and it is unchanged. We have 2 different TTL in same time. I test it on PC and smartphone and its work. I really need to change TTL
Thank you