Tolong jelaskan mengenai 3G external modems dari Universal Mobile Telecommunications System dalam bahasa sunda

Using a cellular router, PCMCIA or USB card, customers are able to access 3G broadband services, regardless of their choice of computer (such as a tablet PC or a PDA). Some software installs itself from the modem, so that in some cases absolutely no knowledge of technology is required to get online in moments.

Using a phone that supports 3G and Bluetooth 2.0, multiple Bluetooth-capable laptops can be connected to the Internet.  The phone acts as a router, but via Bluetooth rather than wireless networking (802.11) or a USB connection.