Guides
SS7 Timers in Mobile Networks: Specifics of MAP TimersMobile Application Part (MAP) timers control how long a signaling node waits for progress during operations such as location updating, authentication, roaming,…
Understanding MTP3 User Part Header for Label RoutingSignaling System No. 7 depends on clearly defined message paths. At the network layer, Message Transfer Part Level 3 (MTP3) examines routing information and…
PSTN To IP Gateway Signaling Interworking With ISUP And SIPConnecting a public switched telephone network to an IP telephony environment requires more than converting voice from circuit-switched media to packets. The…
SS7 Security: Detecting and Blocking Unauthorized GTT RoutesGlobal Title Translation (GTT) is central to SS7 routing. It allows an STP to examine digits such as an IMSI, MSISDN, or service code and select the signaling…
The Lifecycle Of An SS7 Message Across The Signaling NetworkAn SS7 message is part of a coordinated signaling process that connects telephone exchanges, service platforms, databases, and mobile networks. It carries…
SIGTRAN Adaptation Layers Explained For SS7 NetworksSIGTRAN adaptation layers connect traditional SS7 signaling with IP transport networks. They preserve familiar SS7 service interfaces while using SCTP to…
Practical Strategies for ISUP Circuit Identification Code AllocationCircuit Identification Code (CIC) allocation is a small design decision with a large operational impact in SS7 networks. The CIC carried by ISUP messages…
How to Read SS7 Timers in the ITU-T Q.700 Series StandardsSS7 timers define how long a signaling point waits for an expected event, response, or message. They control retransmission, circuit release, dialogue…
TCAP Component Sequence For An IN-Based VPN ServiceAn intelligent network (IN) VPN service uses signaling logic to translate, screen, and route calls before the destination switch completes the connection. The…
MTP2 Flow Control Through FSN And BSN FieldsSignaling System No. 7 depends on reliable transfer across each signaling link. At the MTP2 level, reliability is maintained through numbered signal units,…
