12366 tax service hotline "is the special telephone number of the national tax authorities that State Taxation Administration of The People's Republic of China, People's Republic of China (PRC), applied to the Ministry of Information Industry for approval on 200 1 to meet the needs of strengthening and improving tax service. It has a unified call center code, that is, the IRS is 12366- 1, and the local taxation bureau is 12366-2. It combines manual and automatic voice, providing multifunctional and high-quality voice service all day. 12366 tax service hotline has become an important means for tax authorities to provide tax services to taxpayers and a bridge for tax authorities to communicate with taxpayers and all sectors of society. At present, Anhui Hangxin is an outsourcing project of hotline consultation service of Anhui State Taxation Bureau 12366.