Ifoni and GSM-intanethi

ubulumko chinese uthi akukho nto ngaphezu ukuba siphila kwixesha ezidubedube kunye notshintsho. Kaloku, kuyabonakala ukuba, unethamsanqa kakhulu ukuphila xesha sonke ngoku: ngokuwa eSoviet Union kunye nephepha layo eli yesiphithiphithi, utshintsho ebomini, ukutshintsha kwemozulu. Kucacile ukuba ubomi uzolile, xa unako nge Amathuba aphezulu ukuqikelela ikamva kule minyaka izayo, unako ukulibala ngokukhuselekileyo. Kwelinye icala, ukuba ngenene ayilunganga kakhulu. Kodwa ukuba ujonga into eyenzekayo kwinkalo eyahlukileyo kancinane ... Tshintsha Quick kwenza ubomi umdla ngakumbi, kwizinyibilikisi. Inyaniso yokuba izolo kuphela kwabonakala kungenakwenzeka, ngoku ekubeni yimpumelelo.

Umzekelo, isibini eminyaka eyadlulayo kwabonakala ukuba ifowuni yasendlini - enye yezona obuphambili iindlela zonxibelelwano. Kodwa ke kokufika kwezisombululo engenazingcingo isikhundla sakhe kushukunyiswa kakhulu. Xa ishishini baqala ukwenza zexabiso eliphantsi iifowuni nakwiinkampani GSM kuye kwanciphisa iindleko lweerhafu, ifoni yaqala ukubonakala lwakudala. Noko ke, kwacetyiswa ukuba izisombululo ezimbalwa ekuguquleni imbono malunga ezi ndidi zonxibelelwano. Baba umile GSM-phone.

kuyaphikisana

Kusenokubonakala ngathi kukho isiphoso, ibinzana «GSM ifoni" ayinakuba khona. Noko ke, kwinqanaba yangoku inkqubela xi ri xa xiviri kakhulu. technologies ezimbini ziye zadityaniswa kwiphakati enye, nto leyo kakhulu ezingaqhelekanga ngempumelelo. Ukususela oko ifowuni yasendlini, wonke umntu uyazi, kodwa ke ngokuncedisana engaqhelekanga kunqabile beva, siye sagqiba ukuba ukhanyise mba.

A wave radio ithwalwa kwaye

Ngamanye amaxesha umntu ngoku akukho mobile phone. Nangakumbi: imifuziselo ezininzi ukusebenza ngaxeshanye amakhadi SIM ezininzi abasebenzisi ezahlukeneyo mobile. Kube lula izisombululo wireless Kucacile - ungafowunela kuyo nayiphi na indawo apho kukho ingxelo ngayo kwizikhululo esisiseko. Kunjalo ifoni kwezinye iimeko busaviwa kusetyenziswa. Ngokomzekelo, ukuze ulondoloze imali ixabiso umnxeba. Masithi ufuna ukubiza ukusuka ifowuni iingcingo ukuba inombolo yeselula. Yinto eninzi. Noko ke, ukuba endaweni izixhobo njengesiqhelo ukucwangcisa model indlu gqith (ekuthiwa-GSM yesango), ngoko zonke iingxaki ziya kusombululeka.

umnxeba Normal le nkqubo ilandelayo: ucingo lwasekhaya - inkampani zonxibelelwano neenkonzo zonxibelelwano wireline - operator mobile - "mobile phone".

Ukuba bekunokwenzeka ukuba ukususa ikhonkco yesibini umxokelelwane, lo kwamatyala kuya kwahluka ngokupheleleyo.

Le nto yenza kwama GSM. Kwakwesi onjalo ifoni lo mnqongo cell eqhelekileyo kunye neSIM khadi. Ngokuxhomekeke kwinani ezifowunelweyo, khetha enye okanye enye indlela ukubiza.

Ukuba ufuna oluvela mobile inombolo yasendlini, umnini kwenkqubo olunjalo inombolo yefowuni ngendlela khwlzleyo ezizodwa. Ngenxa yoko, kuqala, kukho unxulumano kunye neyunithi gateway esingenazingcingo ibekwe kuloo ndlu, olukhawulezileyo inombolo yendawo. Ngenxa yoko, i-scheme kuthatha uhlobo: a yeselula umnxeba umqalisi - unit gateway engenazingcingo - umnqongo Esetyenzisiweyo - intsimbi zakudala kwentambo. Ekubeni yeSIM khadi kwaye i "mobile" umnini, njengoko umthetho, ilungu nethiwekhi, iindleko socingo iipeni.