Zaoyangji unlocking telephone

Zaoyang urgently unlocked the mobile phone; The lock is usually unlocked by an individual, and the security room in many communities also has a lock phone. . .

And there are some small advertisements posted on the stairwell of the old building to unlock the phone; There are also small advertisements for unlocking mobile phones on some advertising columns in backstreet.

Some elevators even have telephones on their doors. (There is a telephone above the elevator door in my community)

Because unlocking is a personal matter, small advertisements are usually posted everywhere.