Now that you have a cell phone , why do you keep paying for that land line at home ? Probably because your cellphone phone gets terrible reception inside your house . electric cell telephone set pass along with the nearest cellular tower via radio signaling . If your domicile has atomic number 13 siding or was construct with thick concrete and rebar , it ’s surd for the signaling to penetrate the wall [ source : The - Cell - Phone - Advisor.com ] .
In June 2007,T - Mobileintroduced a raw service , calledHotSpot@Home , that meliorate indoor cell - earpiece reception by allowing user to make and receive cell - phone call over their home wireless net networks ( WiFi ) in gain to the normal cellular net .
T - Mobile is not the only U.S. electric cell - phone provider to roll out a merged cellular / WiFi system – Cincinnati Bell is another [ source : GigaOM ] . However , T - Mobile is the large , so we ’re fail to focus our article on the HotSpot@Home military service .
Here ’s what you need to use HotSpot@Home :
If you already have an 802.11b / g wireless router , you do n’t have to buy a new one . If you do n’t have a router , T - Mobile sells its own wireless router that are configure to give priority to articulation transmissions over data transmittal . This could be helpful if you ’re download a large Indian file while talking on the phone . Your call caliber would continue the same and the file would simply take a small longer to download .
Setting up the HotSpot@Home help is very wide-eyed :
Instantly , the prison cell phone should recognize and conjoin the home receiving set meshwork [ rootage : Phone Scoop ] . This is indicated by a symbolisation in the top - leave turning point of the cellular telephone speech sound screen . WiFi signal strength is indicated by a small orangeness orb with radio waves emanating to the right . The more waves , the stronger the signal .
Now that you ’re tie , allow ’s go over how to use the HotSpot@Home service .
Using HotSpot@Home
Once you ’re connected to the base WiFi meshing , simply use the cell phone as you normally would . All of the typical calling features are included when speak over the WiFi internet , like caller ID , three - way career and call waiting ( seed : New York Times ] . entanglement - based features such as hold back e - mail or browse the cyberspace ca n’t be done over the nursing home WiFi connection . information transportation to and from the prison cell headphone must be made over the normal cellular mesh .
When using the HotSpot@Home service , any call you make or receive over your home WiFi web will persist on the home web as long as the headphone receives a unassailable enough WiFi signal . If you take the air out of your house and off from the wireless router , the signal enduringness will get weaker and weaker until the headphone decides that it ’s time to switch to the cellular web . This is called a " handoff " and should happen seamlessly , without you even comment the switch . [ source : engadget mobile ]
The same is genuine when you enter your house . As shortly as the WiFi signal is hard enough , the phone will automatically handoff from the cellular meshwork to the home wireless internet .
There are many advantages to using a table service like HotSpot@Home . presently , the chief advantage is cost . If you pay $ 9.99 superfluous a calendar month for the HotSpot@Home Add - On , you could make outright countrywide calls from a WiFi electronic web , any time of mean solar day . claim induct or receive on the WiFi connection are bill as a WiFi call even if you hand off mid - conversation to the cellular connection . [ source : New York Times ]
For instance , if you call the billet from dwelling house , then leave the house and continue to talk as you push back an hour to work , the entire call is bill as a WiFi call . WiFi calls do n’t consume up minutes from your normal calling plan – that is , if you ’ve paid for the HotSpot@Home Add - On . If you take not to buy the HotSpot@Home Add - On , you could still make calls from a WiFi meshwork , but they ’ll be charged as part of your unconstipated career architectural plan , meaning peak hours and nighttime / weekend minutes apply .
The other financial advantage of HotSpot@Home is that you’re able to at last get rid of that landline telephone and all its additional local and foresightful - distance charges .
With the HotSpot@Home technology you’re able to make call option from any useable WiFi connection , not just your domicile electronic connection . The dual - mode earphone allow you to well look for available WiFi meshing [ reservoir : Phone Scoop ] . If the meshwork ask a password , you’re able to typewrite it into the phone . The phone saves a inclination of the WiFi networks you have access – along with passwords – so that it can automatically unite to them in the future .
to boot , T - Mobile has rig up over 8,000 HotSpots across the United States in popular locations like Starbucks coffee shops and FedEx Kinko ’s business office . T - Mobile ’s dual - mode phones automatically access these WiFi meshing without call for a mesh search or a word .
Now let ’s look at the engineering science that have merged cellular / WiFi web tick .
HotSpot@Home Technology
HotSpot@Home take reward of three rapidly emerging telecom technologies : dual - modality cell phones , home wireless web ( WiFi ) and wireless VoIP ( Voice over Internet Protocol)telephony .
Wireless VoIP telephony utilize an IP mesh , rather than a internet of cellular pillar and switches , to connect a cell sound to the sleep of the cellular internet . And , since dual - musical mode jail cell phones take WiFi radios , they ’re able-bodied to get at these IP networks through WiFi router . For more elaborated information on how WiFi VoIP works , check outHow WiFi Phones Work .
Dual - mode cell phones communicate over abode WiFi networks through a applied science standard calledUMA ( Unlicensed Mobile Access ) . A UMA - enable phone can get together any unaccredited WiFi web . An " unaccredited " WiFi net simply means that the meshing operates over a free , unrestricted wireless frequency . For example , 802.11b / g routers , convey over the unlicensed 2.4GHz spectrum . Companies or government agency grease one’s palms licensed spectrum for exclusive usage [ germ : WiMax.com ] .
Since dual - modality phones contain both cellular and WiFi tuner , they ’re able to send and experience call over two disjoined networks : the Cellular Radio Access web ( RAN ) and the Unlicensed Mobile Access web ( UMAN ) [ source : UMA Technology ] . The phone decide which connection to use based on which one has the unspoilt sign metier : cellular or WiFi .
A Cellular Radio Access web ( RAN ) is the traditional cellular meshwork that trust on a series of cellular towers and switching stations . For a detailed account of how mobile phone phones work over a Cellular Radio Access web ( RAN ) , see How Cell Phones Work .
Here ’s how a duple - mode cubicle phone connects to the same mobile meshwork over an Unlicensed Mobile Access connection ( UMAN ):
When a dual - mode mobile phone phone moves out of the WiFi internet ’s range , it automatically hands off to the cellular - radio set electronic internet without any help interruption [ source : UMA Technology ] .
Routing calls over two disjoined fluid networks is really a huge money - saver for cellular service providers . The only means to improve coverage and keep up with heavy dealings on a traditional cellular radio connection is to build more cellular tower [ source : New York Times ] . But with HotSpot@Home , T - Mobile is capable to re - route a substantial amount of that traffic onto broadband net electronic internet – which , incidentally , T - Mobile does n’t own and therefore does n’t have to maintain .
service like HotSpot@Home appear to be the next big thing in telecommunication . In the already booming cell phone market , duple - musical mode phones are the fast develop section worldwide [ origin : cellular - news].Infonetics Researchpredicts a compound annual development charge per unit of 198 percent for dual - mode speech sound sales from 2006 to 2010 .
For more information on HotSpot@Home and associate topics , check out the links on the next page .
