10/21/12
Mobile Computing
CSE 40814/60814 Fall 2012
Public Switched Telephone Network - PSTN! Transit switch Transit Transit switch Long distance network switch
Local Local switch switch
Outgoing Incoming call call
- Transfer mode: circuit switching
10/21/12
Mobile Computing
CSE 40814/60814 Fall 2012
Public Switched Telephone Network - PSTN! Transit switch Transit Transit switch Long distance network switch
Local Local switch switch
Outgoing Incoming call call
- Transfer mode: circuit switching