Shenzhen Headquarter
Address: Floor B3, Building T3, Nanqi Road, South area of high-tech industrial park, Shenzhen
Switchboard: +86-755-26745688
Fax: +86-755-26745666
Website: http://www.tydic.com
Postal code: 518057
Pre-sale contact way (telecommunications industry):
Pre-sale service telephone: 0755-26745682
Pre-sale service mailbox: consulting@tydic.com
Pre-sale contact way (Police government industry):
Pre-sale service telephone: 0755-26745429
Pre-sale service mailbox: marketing@tydic.com

Shanghai Subsidiary Company
Address: Floor 4, No.17 Building, No.295 South Lingyan Road, Puddings New Area, Shanghai (Sanlin World Expo Park of Shanghai Pudong Software Park)
Telephone: (021)6832 9002
Fax: (021)6832 9005
Postal code: 200126

Guang Zhou  Subsidiary Company (Guang Zhou Yi Jie Digital Technology Ltd.)
Address: 11Th  Floor  A  Building No89 Zhong Shan Main Street Hua Jing Software Park Guang Zhou
Telephone: (020)85215921
Fax: (020)38783275
Postal code: 510630
Website: http://www.easier.cn

Unicom division/Beijing office
Address: Room 2601-2604, Floor 2, No.66 East Zhongguancun Road, Haidian District, Beijing (Century Science & Technology Building C)
Telephone: 010-88875411，88875477 Fax: 010-88875411
Postal code: 100190
  
Wuhan office 
Address: Room 2202-2203, Building B, 2008 New Yang-tze River Square, No.2 Friendship Avenue, Wuchang District, Wuhan City, Hubei
Telephone: 027-88868080 88863055
Fax: 027-88863057
Postal code: 430061
  
Hefei Branch
Address: Building 5, No.449 West Yang-tze river Road, Hefei City, An’hui Province
Telephone: (0551)5580588
Service hotline: (0551)5580606
Fax: (0551)5580577
Postal code: 230031 
 
Guiyang Office 
Address: Room 408, Postal Building, No.229, North Wenchang Road, Guiyang City, Guizhou Province
Telephone: (0851)6764717
Fax: (0851)5253328
Postal code: 550002

Nanning Office
Address: Room 1401, Shijishangdou, No. 7 Jinpu Road, Nanning, Guangxi
Telephone/Fax: 0771-5520436
Postal code: 530022

Xi’an Office
Address: No. 5. Floor 9, Building A of Hanguangjiayuan, No.67 High-tech new Road, High-tech new area, Xi’an
Telephone: 029-88338530，88338531  Fax: 029-88338532
Postal code: 710075

Chengdu Office/Southwest Technical Support Center
Address: 5-2-26-1 Tianhe Kaixuan City, No.66 Ruilian Road, Qingyang District, Chengdu City
Telephone: 028-87088452    Fax: 028-87088451
Postal code: 610091
  
Tibet Technical Support Center 
Address: Charging center, Floor 2, Xijiao Telecommunication office, West Beijing Road, Lhasa City, Tibet Autonomous Region
Telephone: (0891)6834000
Postal code: 850000