MCC-MNC Codes and Network Names Question
I believe that in CA T-Mobile and Cingular share the 310-170 network. Why does a T-Mobile phone would display it as T-Mobile while a Cingular phone would display it as Cingular?
Is the network name transmitted through the air or the network number is mapped to a net work name by the SIM?
Thank you very much for your clarification.
Is the network name transmitted through the air or the network number is mapped to a net work name by the SIM?
Thank you very much for your clarification.
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huyphamus said:
I believe that in CA T-Mobile and Cingular share the 310-170 network. Why does a T-Mobile phone would display it as T-Mobile while a Cingular phone would display it as Cingular?
Is the network name transmitted through the air or the network number is mapped to a net work name by the SIM?
Thank you very much for your clarification.
I think T-Mobile and cingular use what's called "EONS" SIMs. EONS SIMs are engineered that they will always show the home "real" network. T-Mobile subscribers in California with older non EONS SIMs will see cingular rather than T-Mobile. In the same way cingular subscribers in the NYC metro area will see cingular if they have EONS SIMs rather than T-Mo...
(continues)
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