Global Title - Global Title Routing in Mobile Networks

Global Title Routing in Mobile Networks

See also: Mobile Application Part

In mobile networks, there are database queries such as "how can I tell if this subscriber is really who he says he is" (MAP_Send_Authentication_Info) which have to be routed back to the database which holds the subscriber's information (the HLR, or in this case, the AUC).

Unfortunately, at the time the subscriber first arrives, we don't know which HLR is the subscriber's HLR. For this reason, the queries have to be routed on the subscriber's identity (IMSI) is used to generate the called party address in the message. How this is done depends whether we are in world area 1 (North America) or somewhere else.

There are three types of GT in use in mobile networks known as E.164 (MSISDN), E.212(IMSI) and E.214(MGT):

  • E.164(MSISDN) = CC+NDC+SN, e.g. 91-98-71405178
  • E.212(IMSI) = MCC+MNC+MSIN, e.g. 404-68-6600620186 (MTNL delhi)
  • E.214(MGT) = combination of E.212 and E.164 (Exact combination is defined in the operators IR21 document)

Read more about this topic:  Global Title

Famous quotes containing the words global, title, mobile and/or networks:

    “Ours is a brand—new world of allatonceness. “Time” has ceased, “space” has vanished. We now live in a global village ... a simultaneous happening.”
    —Marshall McLuhan (1911–1980)

    “Bolkenstein, a Minister, was speaking on the Dutch programme from London, and he said that they ought to make a collection of diaries and letters after the war. Of course, they all made a rush at my diary immediately. Just imagine how interesting it would be if I were to publish a romance of the “Secret Annexe.” The title alone would be enough to make people think it was a detective story.”
    —Anne Frank (1929–1945)

    “From three to six months, most babies have settled down enough to be fun but aren’t mobile enough to be getting into trouble. This is the time to pay some attention to your relationship again. Otherwise, you may spend the entire postpartum year thinking you married the wrong person and overlooking the obvious—that parenthood can create rough spots even in the smoothest marriage.”
    —Anne Cassidy (20th century)

    “The great networks are there to prove that ideas can be canned like spaghetti. If everything ends up by tasting like everything else, is that not the evidence that it has been properly cooked?”
    —Frederic Raphael (b. 1931)