Dauer: 00:00:24 | 2 Views
There are two main types of callbox units available, wired and wireless. http://www.squidoo.com/Wireless-Call-BoxDauer: 00:00:23 | 19 Views
You can get call boxes that require an FCC license, or you can get units that are certified for use on special FCC License-Free MURS Business Frequencies. [...]Dauer: 00:00:23 | 23 Views
The range of these units is several miles, which can be extended by adding an external antenna. http://www.squidoo.com/Wireless-Call-BoxDauer: 00:00:23 | 2 Views
The benefit of a wireless callbox is that you save money by not having to do trenching and running expensive cable to the unit. http://www.squidoo.com/Wireless-Call-BoxZum gleichen Thema