Руководство По Устранению Ошибки для Cisco Cisco Tunnel Terminating Gateway (TTG)
GGSN Support in GPRS/UMTS Wireless Data Services
How GGSN Works ▀
Cisco ASR 5000 Series Gateway GPRS Support Node Administration Guide ▄
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Figure 17. HA Assigned IP Address Proxy Mobile IP Call Flow
1. The Mobile Station (MS) goes through the process of attaching itself to the GPRS/UMTS network.