Guides

SS7 Network Topologies: Mesh, Star, and Hybrid DesignsSignaling System No. 7 depends on carefully arranged links, signaling points, and routing relationships. The network topology determines how messages travel…
Case Study: Fake Location Update Through MAPMobile networks rely on signaling messages to track subscribers as they move between service areas. The Mobile Application Part (MAP), carried through SS7 or…
ISUP Backward And Forward Call Indicators ExplainedSignaling System No. 7 uses Initial Address Message (IAM), Address Complete Message (ACM), Answer Message (ANM), and release messages to coordinate…
SIGTRAN Transport Layer: SCTP Multihoming and Failover ExplainedSIGTRAN carries traditional SS7 signaling across IP networks, allowing operators to connect signaling applications with modern packet-based infrastructure. At…
SS7 Monitoring And Probe Insertion For Network TroubleshootingReliable signaling is central to voice calls, SMS delivery, roaming, emergency services, and many interconnect operations. When SS7 traffic is delayed or…
MTP3 Restart Procedure: When And How It HappensMTP3 is the routing and network-management layer of SS7. It directs signaling messages between signaling points, controls linksets, and reacts when routes or…
The Role of Signaling Point Codes in International SS7 InterconnectionSignaling point codes are the addressing foundation of Signaling System No. 7. They identify network elements such as service switching points, signal transfer…
How SS7 Enables Number Portability QueriesNumber portability allows subscribers to keep their telephone numbers when changing carriers, service providers, or geographic locations. For the network,…
Fault Management in SS7 Networks with MTP2 Link Status SignalsReliable SS7 operation depends on detecting signaling-link failures before they become call-routing, mobility, charging, or interconnection incidents. MTP2…
SS7 in LTE: From Circuit Switching to IMS SignalingThe move from circuit-switched telephony to LTE changed how mobile networks establish calls, deliver messages, and manage subscriber services. Traditional 2G…