Guides
SCTP Packet Format, Selective ACKs, And Congestion ControlStream Control Transmission Protocol (SCTP) carries signalling and other message-oriented traffic across IP networks. Unlike TCP, it preserves message…
SCCP Segmentation and Reassembly for Long User Data PacketsWhen a TCAP or MAP message grows beyond what a single SCCP unit can carry, the Signaling Connection Control Part breaks it apart, ships each piece through the…
Following an ISUP Call from IAM to Release GuardAn ISUP signalling connection is a controlled exchange of messages that carries a circuit-switched call from route selection to circuit clearance. Although…
ISUP continuity check on satellite links and loop-around testingThe ISUP continuity check, often shortened to COT, is the mechanism that tells a switch whether the bearer path between two exchanges actually carries voice.…
AP Component Handling for MAP and CAP in SS7 NetworksIn the layered world of Australian telecommunications, TCAP rides on top of SCCP and supplies the transaction framework that MAP and CAP rely on across the…
MTP3 Congestion Control Through ONPC and Transfer Controlled MessagesAustralia's telecommunications landscape stretches across vast distances, from the dense fibre corridors of Sydney and Melbourne to remote microwave links…
SS7 Point Code Management in Nested STP HierarchiesSignalling System No. 7 still carries most voice and SMS control traffic across Australian networks, even as IP-based alternatives have spread through the…
From TDM to SIGTRAN in Legacy Signalling NetworksTelecommunications networks built around time-division multiplexing (TDM) still carry important voice and signalling traffic. ISDN, SS7 links and traditional…
SCTP Multi-Homing in SIGTRAN for Resilient SS7-over-IP NetworksSIGTRAN, the IETF-defined family of protocols that carries legacy SS7 signalling over IP, has become the backbone of modern carrier interconnection. At the…
Send Authentication Info and HLR behaviour across GSM and UMTSMobile networks across Sydney, Melbourne, Brisbane, Perth, Adelaide and regional Australia still depend on authentication exchanges that began long before…
