Back when movie making was new, there were things called blacklists. These often kept actors out of work because of something they did or believed in their personal lives. In fact, blacklists were everywhere at one time, and could really do damage to someone's life.

Find out how to tell if an email is spam or not. If it is, you want to know what to do next. If not, you may do something else with it.

Finding out the origin of an email message is not always as simple as looking up the message and reading who it is "from". This is especially true with emails you receive from senders you don't know. The problem is anyone can create a false identity or a fake address and use this as their sender information.

Any computer or other technological device that is publicly connected to the Internet is given a unique number called an IP (Internet Protocol) address. IP addresses contain four groups of numbers that are separated with periods, and each number group can feature number(s) that range anywhere from 0 - 255. An example of an IP address is 1.

The North American Numbering Plan (NANP), which is commonly known as the area code system, is an integrated numbering plan that currently covers 24 countries and territories including the United States of America, Canada, and a number of Caribbean nations. The NANP portion of a phone number is the area code - the first three digits of a ten digit phone number. The area code of a telephone number is what connects calls to specific geographical regions on a public switched telephone network.

Every website on the Internet contains a domain, which is one of the main elements that make up a DNS (Domain Name System) address. A domain is a significant part of a URL (Uniform Resource Locator) because it locates any entity on the web. There is more than one domain name, and they are separated into diverse categories, which are represented by a suffix such as...

If you still haven't explored VoIP phone technology, then you're missing a trick. VoIP means making free phone calls over the web, so VoIP to VoIP calls are totally free. And it saves already a fortune to thousands of companies in the world.

Many people have heard of Ventrilo VoIP servers. They are most commonly known for aiding communication in multiplayer online games. However, the uses for this indispensable technology are countless.

We are regularly reading and experiencing the importance and advantages of a fiber network and the reasons behind the popularity it is gaining by each passing day. GEPON is also a part of this increasingly popular network architecture. Before getting on with GEPON, an introduction would do just fine, as where it came from. EPON (Ethernet Passive Optical Networks) or GEPON (Gigabit Ethernet Passive Optical Networks), also known as Ethernet PON is an IEEE/EFM standard for using Ethernet for packet data, as defined in IEEE 802.3ah.

Global Positioning Systems are growing in popularity and are improving in quality. The GPS system itself is improving in accuracy and several manufacturers are offering GPS-embedded technology products, such as the GPS Cell Phone.

The evolution of the phone system has not made much forward movement if you compare the most used features. In this article I will examine some of the the more significant improvements and features enhancements that Small Businesses can look forward to when shopping for a new phone system.

Speaking at the Gartner Mobile and Wireless summit in London, Gartner research vice-president Ian Keene said that five key wireless technologies are likely to emerge in the next five years to make the lives of anyone managing wireless networks even more complicated. In the personal space, Bluetooth will be joined by Zigbee for low-power telemetry with batteries that last months or years. Office wireless LANs will finally see 802.

3G telephony will happen in Thailand, but will not be out of market demand for high speed data or higher density voice calls. Rather, 2.1GHz 3G is all about escaping from the revenue sharing agreements that bind today's 2G operators in a country where intense competition means that airtime is already among the cheapest in the world.

The speed of internet plays a vital role in surfing, downloading or uploading. Everyone is keen to know about the upload and download speed the internet service provider ISP is providing. Nowadays when most of the dialup users have shifted to new services called Broadband T3 the speed is not a problem.

While providers don't like to admit this, their fiber-optic connection stops at the curb. Verizon Fios is the only Internet provider who actually brings fiber-optic all the way into your home, right to your computer.

If you currently have cable Internet and/or television, ask yourself how happy you are with the reliability, and with the customer service you get when you call for help. Most cable customers would happily choose another provider, if someone else offered the same speed, quality and content options at a comparable price. Verizon FiOS goes one better.

At&t is largest provider of long distance and local calls in the United States and it has over 71.4 million customers. The other services the company offers are internet services and wireless services. The company was first founded in 1983 and later merged to have the present name.

Cell phone plans gave us access to a certain number of call minutes for a set price plus, usually, free nationwide long distance on evenings and weekends. Of course, they also had disadvantages such as sometimes spotty service areas, dropped calls and, all too often, bad reception. Now VOIP is bringing us yet another option for long distance service, promising greater convenience and freedom. We can even consider combining cell phones and VOIP technology. Can these promises be fulfilled?

It is not uncommon for people to look for low rate VoIP. In general, all forms of VoIP services are already cheaper than the usual telephone service.

You can learn a lot just by looking at VoIP ratings. The quality of provider's service is reflected in a rating. Ratings are typically given from one to five with a full five being the highest.