Service and SupportWe offer you more information including products and services, at the same time，provide you with a feedback platform for the technology exchange services, and an uninterrupted fast self-service.
| Technical Service Hotline | |
| TEL：+86-20-81797922 81796410 FAX：+86-20-81796213 | |
| Download | |
| You can get more product information such as product brochures, user manuals, support tools, corresponding teaching simulation software, and so on. | |
| On-line Consultation | |
| We provide you with the on-line service from our engineers. You can get the direct troubleshooting by the on-line service and also dial the hotline support when you encounter problems. | |
| Service Network | |
| You can find out our offices at home and abroad with concrete addresses and telephone numbers, which is convenient to you to resolve problems timely. | |