1. After-sales technical support: no matter customers feedback problems in what way (telephone, fax, E-mail, etc.) , we will provide to customers with timely and effective technical support. 

2. Project suggestion services: including the analysis of project requirements, develop project solutions, network upgrades optimization suggestions. 

3. Training services: according to customer demand, our company can provide customers with pre-sales and after-sales training services. for example, solution and application training, product open training, maintenance skills training, basic knowledge training and so on.