Ch. 7 Networks, Telecommunications, and Mobile Technology{0}
In the article, “AT&T approves VoIP for iPhone,” the discussion focuses on the capability of the iPhone to be able to use VoIP applications, most specifically Skype. Voice over Internet Protocol(VoIP) transmits voice calls over long distance phone lines using a data network. AT&T’s previous stand is to not allow VoIP apps over their 3G network, but allowing the use over any Wi-Fi network. Allowing customers the ability to now make phone calls over AT&T’s 3G network is huge, for now phone calls can be made without customer’s using their wireless minutes. Although AT&T’s reluctance to allow VoIP apps has merit, AT&T implemented the use of VoIP due to customer demand for the use of the application. The availability of VoIP apps will be available soon over a 3G network as apps begin to be implemented onto the iPhone.
The article directly relates to Ch. 7, “Networks, Telecommunications, and Mobile Technology,” as it discusses the use of VoIP over AT&T’s 3G network, a form of cellular technology. VoIP was previously criticized for the poor call quality and low call completion rates, but today VoIP is able to offer the same call quality of phone calls made of over landlines. Drawbacks to the use of VoIP include its susceptibility to the threats that occur over a data network. VoIP can be intercepted or captured so VoIP must me be secured in order to prevent such occurrences.
AT&T approves VoIP for iPhone. Retreived October 8, 2009 from http://scitech.blogs.cnn.com/2009/10/07/att-approves-voip-for-iphone/