P-TMSI - Packet – Temporary Mobile Subscriber Identity

The P-TMSI is a temporary identity issued to a GPRS enabled mobile, unique within a given RA (Routing Area), and is used by the GPRS network to page the specified mobile. The P-TMSI is comprised of 32bits and is associated with the TLLI (Temporary Logical Link Identifier).


  • Fully interactive 3GPP based network map
  • Narrated call flows
  • Detailed network procedures

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