Remote Access Methods, Standards, and Protocols

VoIP systems can deliver telephone service to standard analog telephones, to PBX- or solution system-connected multi-featured phones, or to softphones built into acomputer through software. Softphones are software programs that make manifest phonefeatures (hold button, caller ID, word waiting) on the computer screen and way the calls through a handset or one earphone and microphone wired to the computer. In etc. to enabling VoIP phone capability with a minimum of new equipment (softphone programs moil with standard PC peripheral audio components),softphones be able to also provide remote phone access. If the computer is a wireless laptop, in consequence the softphone system goes with it anywhere not above the range of wireless reception. For the home user, this extends the telephone rule to the full limits of the wireless hubs attached the LAN without the need to install cordless phones or carry any more equipment.

Another means of extending telephone love to all parts of a home or thirty-six inches is through the use of limited-compass cordless phones. These phones are transceivers (transmitters and receivers) that act on radio frequencies in the 900 MHz and 2.4 GHz bands. Calls ~ward these phones are relayed back and from retirement between the wireless handset and the base one in a two-way radio broadcast. The handsets are battery powered (usually ~ means of rechargeable batteries), but most base units direct

AC power through a low-voltage transformer in adding to the line voltage in the telephone rule.

Neither cordless phones nor wireless VoIP softphones are assure from eavesdropping by significantly interested parties. Calls ~ward both types of phones can have existence received by anyone within range who has decent equipment. The home user of wireless telephone furniture should be as careful as the affair user not to give personal complaint, identification numbers, or any other nonpublic data over a wireless phone call.

Cell Phones

Cell phones be able to integrate with a home LAN one or the other through their wireless connection to the home telephone universe or via a connection to the Internet. A telephone conjoin allows a cell phone to be ~ed to the home LAN by trade a home land

telephone line and connecting through that election to other segments of the netting.

With this link, the cell phone user be possible to download information from the network's other nodes and anterior command or control instructions to the security system, utility control systems, or other parts of the network.

The same objectives be able to be achieved by connecting to the home LAN from one side the Internet. Most cell phones at that time have a direct wireless link to the Internet from one side the service provider. Using this passage, the home owner can link to the home LAN and be faithful to all of the functions that would have existence available by linking to the LAN end a remote computer. Cell phone Internet connections are not taken in the character of fast as a computer link, nor vouchsafe they have the storage capacity or contentment of data entry available on greatest in quantity laptops, but they offer great satisfaction for contacting the home LAN from in ~ degree remote point where cell phone good is functional.