voipeer-8----Page:5
1 2 3 4 5 6 7 8 9 10 11 12
|
IP Phone IP Phone Provider B Provider A PSTN PSTN MG MG SS7 SS7 Wireless Wireless Reference Diagram SF: Signaling Function MF: Media Function RF: Routing Function OF: O&M Function SF SF MF MF RF RF OF OF |