# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

GGSN Gateway GPRS Support Node

The Gateway GPRS Support Node supports the edge routing function of the GPRS network. To external packet data networks the GGSN performs the task of an IP router. Firewall and filtering functionality, to protect the integrity of the GPRS core network, are also associated with the GGSN along with a billing function.

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