I work in California. I need to install low voltage burglar alarm in the office but realized I need a license for that. What are the requirements for low voltage license California?

I am using MySQL to execute SQL queries to obtain data from multiple databases and I am continually getting this error MySQL ignoring query to other database. How to prevent this error?

I need to setup a music on hold free for my customer care call Centre and I need to add hold option and put some music when the phone is on hold.

I installed Skype by altigen communication system but cannot understand a few things- especially the call waiting feature.

Can anyone help me with altigen support for call waiting?

I need to display two screens identically. So, I bought one Vcom VGA splitter. After following the instructions, it still did not work. Few people told me that I need a new graphic card. But, my original graphic card has a multi display option. Can someone please tell me how to get the OptiPlex 3020 dual monitor to work?

I am very interested in learning about the electronics and electrical things, as well as how they work. Recently I was trying to learn about the turret system but did not find much information about it. Can anyone tell me what it is?

I have an important project to complete but I am unable to print stuff which I need. Even after several attempts to connect to the printer, it shows “operation failed with error 0x00000057”.Someone please help me out.

I have been using openfire for over a month now. I have been using it for instant messaging and now I forgot m password. Can someone please help me ‘openfire’ reset admin password?

I’m looking for a very nice open source WLAN controller and I heard “chillispot” is a good one. I still need more advice on whether to go for chillispot or not.

Can optical fiber carry electricity? Is coax over fiber in carrying electricity ?