Software of budget and budgetary estimate and settlement:
TLGYS is the software for telecommunication engineering budget and budgetary estimate jointly developed with the Ration Quality Monitoring Center under the Ministry of Information Industry . The software has passed the examination and appraisal of the Telecommunication Engineering Ration Quality Monitoring Center under the Ministry of Information Industry .　　　　                                                                                                      Certificate of copyright
　　　　　　　　　　　　　 　 　　　 　　　 　　　

Telecommunication engineering line aided drawing software:
TLCAD is the computer aided design software for telecommunication line developed by Beijing Telesun Science and Technology Development Company Ltd.                                                             Certificate of copyright

Forecast software for inter-office traffic load Forecast:
ErlPredict5.0 offers inter-office attraction coefficient method and dual factor converter technique to make accurate forecast of inter-office traffic load.

Economic appraisal software:
Tlecv is composed of national economic appraisal and financial appraisal and gives priority to financial appraisal. It estimates the financial feasibility of a project through the calculation of the dynamic financial appraisal index of the project.