Feeling frustrated with time wastage on downtime ? Or are you constantly being put on hold when asked for assistance with problem on your hardware/software ? At SiS International, we understand the significance of time to our valued customers and we endeavour to solve your problem at the shortest time possible. Do you have ... ... a problem with hardware or software purchased from SiS? Just print a copy of the DOA Request Form, fill-in the necessary information and fax to 2562.7428. One of our engineers will contact you as soon as possible. ... a technical question? Feel free to call our Technical Support Hotline at 2565.1682 or send us an email at technical@sis.com.hk. You can also send your questions using our online Technical Request Form. ... interest in becoming an SiS Reseller? Application is so simple. Just fax us a copy of your name card along with your Hong Kong Business Registration Certificate to 2563.5197 and attention it to our Sales Department. You can also give us a call at 2565.1682 or send a request using our online Inquiry Form. MAINTENANCE INFORMATION.