The Full Form of SGSN is Serving GPRS Support Node.
The Serving GPRS Support Node (SGSN) is a main component of the GPRS network, which handles all packet switched data within the network, e.g. the mobility management and authentication of the users. The SGSN performs the same functions as the MSC for voice traffic. The SGSN and the MSC are often co-located.
SGSN
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Serving GPRS Support Node
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