Wednesday, 7 March 2012

Learning about SS7 and SIGTRAN protocols...

SCTP - A TCP like protocol for reliable transportation between two signaling nodes
M3UA - Provides Network Routing between SS7 signaling nodes identified by Point Codes
SCCP - Provides Network Routing between SS7 signaling end points identified based on Global Titles (phone numbers can be used here)
TCAP - Manages end to end transactions between two nodes including time outs when peers don't respond
MAP - Presentation layer defining message formats and parameters for specific GSM / UMTS services e.g. Forward SMS
INAP/CAP - Similar to MAP except for IN or CAMEL services
IS-41 - Similar to MAP except an ANSI variant