12345 generally refers to the government hotline set up by local municipal people's governments to accept the demands of the masses and enterprises 24 hours a day through telephone 12345, mayor's mailbox, SMS, mobile phone client, Weibo and WeChat. Hotline 12345 can improve the service level for the people, promote administration according to law, innovate social governance, and safeguard the legitimate rights and interests of natural persons, legal persons and other organizations.

The long-distance telephone number in jiaozhou city is 0532-872 12345.