System identification number: Difference between revisions

Revision as of 12:34, 20 June 2013

Revision as of 19:38, 1 June 2014

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When the phone is turned on, it listens for a signal. If it receives a signal, it looks at the SID (being carried by the signal), and compares it with the one that is stored in the phone. Originally, in analog systems, the mobile would simply turn on the [[roaming]] indicator if the SID was not the single value stored in the phone.

However, with CDMA systems the [[Preferred Roaming List|Preferred Roaming List ('''PRL''')]] (PRL) is responsible for determining which areas a mobile can roam into. [[Base Station|Base stations]] may also broadcast an [[List of mobile country codes|MCC]] and [[Mobile Network Code|MNC]] which can also be used by the PRL.

==External links==