This flowchart summarizes the network elements and protocols in a mobile network. It shows the connections and communication between elements like the UNO MM, UNO EM, OMCR, OMCLAN, half cards, XC, GPROC, FEP, CDP MSI, XCLINK, MSCSLink, ICLINK, ICLDL, MSCSPAN, VLR, EMX, IWU, BTS, HLR, and connections to external networks like the PSTN and Internet. Protocols shown include TCP/IP, SS7, Ethernet, Token Ring, C7LINK, A+, IS-95, and IS-41.