Picture This…

You’re working for a multinational corporation based in Montreal and you’re on a business trip in San Francisco for a week. While you’re relaxing in a café sipping your latte (don’t ask) you suddenly realize you’ve forgotten a critical document on your work PC and you have to call your technical support to get [...]

The first generation of commercially available cellular phone technology began as basic analog (AMPS) service. Eventually the transmissions became digital (D-AMPS / GSM) and today, 3G refers to third generation of new technologies such as WCDMA, UMA and CDMA2000. [1] Although 3G has been rolled out in a few countries already, the most commonly used [...]

With wireless hotspots spreading like wildfire and the explosion of VoIP, VoWifi was the next obvious step to facilitate communications. Now, a VoIP phone call no longer requires a [direct connection to a] PC wired to the Internet! Now, we’ve got the possibility of free phone calls while on the go! Of course, VoWifi is [...]

Wifi is currently the most commonly used method to access packet switched networks (including the Internet) wirelessly. The official standard is called IEEE (Institute of Electrical and Electronics Engineers) 802.11 and is specifically focused on wireless local area networks (WLANs). Most of the 802.11 wireless devices on the market fall into 3 categories/protocols: 802.11a, 802.11b [...]

Circuit Switching vs. Packet Switching

In order to fully understand how IP telephony works, we must first understand how the POTS (Plain Old Telephone Service) works. The key difference between these two technologies is how the data/voice is transferred. The old [voice] system uses circuit switching and the new data networks [IP/Internet] use packet [...]

I figured the best way for me to try and actually finish this assignment is to put it on my blog. Again, this is my first experience with VoIP so please feel free to correct any mistakes. I will post it section by section as I write it up and then hopefully put [...]