Annotated Bibliography: Switching To Voip

Annotated Bibliography

Erik Crawford

Western Governors University

Wallingford, T. (2005). Switching to VoIP. O 'Reilly Media, Inc.

This article is about the many different procedures and how to make the switch to VoIP more efficiently whether it is in the work place or at home. Also discusses many different reasons why someone or a business would want to make the change over to VoIP phones. VoIP solutions are more reliable and work more efficiently than DSL or PBX phone systems. They also work by sending voice calls over the internet which will eliminate the need for older telephone lines to make the phone calls like traditional phones. VoIP for NHS would provide an excellent phone service for their phones since they are

One of the issues that affect the speech quality for VoIP solutions can have packet loss because of the bandwidth of the customer’s network. There can also be some microscopic loss, which may also impact performance of VoIP phones. VoIP has many different scenarios and situations that could cause packet loss, dropped calls, and signal noise. This however does not get rid of the need for a local telephone provider in the area to connect your voice calls while keeping the same number. A hosted VoIP solution would be a great option for NHS because NHS would pay another company to manage and maintain through them. It is a higher upfront cost per month but has a much lower up front cost if they were to go the traditional VoIP system. VoIP solutions save more money than other phones systems because they can use the existing network infrastructure. Adding new users to a VoIP system is relatively easy compared to adding a user to a PBX

The cellular system is comprised of a data-bearing path and a voice-bearing path. When the dual mode is remote unit is being used within the WLAN, it will communicates with both the VoIP signaling and also does session initiation over the WLAN. If the remote unit is outside the WLAN, it will communicate with the voice signaling over the voice-bearing path of the cellular network that is used as a standard cellular voice channel (Gene Marsh, 2004). Private Branch Exchange (PBX) is a type of phone system that businesses use when they need a large phone solution. Majority of PBX phone systems already have the basic needed phone features and a lot of the advanced features come with the system from the start. PBX pone systems require more maintenance than VoIP phones. They cost a lot more to maintain and keep them updated. This type of system is more difficult to setup and configure than say a VoIP phone system (Gene Marsh,