E1/T1
A European format for digital transmission. E1 supports signals at 2 Mbps (32 channels at 64Kbps, with 2 channels reserved for signaling and controlling), versus the T1, which carries signals at 1.544 Mbps (24 channels at 64Kbps).
In the mobile Internet protocol (Mobile IP) the mobility agent is a router supporting the redirection of the mobile Internet traffic point when its condition regarding the home network is changing.
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