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Guide to SS7 Protocol

<br>Signaling System 7( SS7) is a transnational telecommunication protocol standard that defines how the network rudiments in public switched telephone networks ( PSTN) exchange information and control signals. nodules in an SS7 network are called signaling points.<br>To Know More visit our PPT <br>

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Guide to SS7 Protocol

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  1. Ultimate Guide to SS7 THYAGARAJAN G [Network SUPPORT ENGINEER]

  2. Thyagarajan[Network Engineer]

  3. Protect yourself from Online Scams Signaling System 7( SS7) is a transnational telecommunication protocol standard that defines howthenetworkrudimentsinpublicswitchedtelephonenetworks (PSTN)exchange informationand control signals. nodulesin an SS7 networkare called signalling points. It's the system that controls how telephone calls are routed and billed, and it enables advanced callingfeaturesandShortCommunicationService(SMS).It may also be called Signalling SystemNo. 7, SignalingSystemNo. 7 or-- in the United States-- Common Channel SignalingSystem7, or CCSS7. SS7wasfirstembracedas a transnational standard in 1988, and the rearmost modification of the standard was in 1993. It's still the current standard for telephone calls and is in exercise for bothlandline and mobile phone service up toand including 5G. WhatareSS7attacks? SS7 attacksare mobile cyber attacks that exploit security vulnerabilities in the SS7protocol to jeopardizeandblockvoiceandSMSdispatches on a cellular network. analogous to a Man In theMiddle attack, SS7raids target mobilephone dispatches ratherthan wifi transmissions. HowdoSS7attackswork? SS7attacksexploittheauthenticationcapabilityofcommunicationprotocolsrunningatopthe SS7 protocol to listen in on voice and textbook dispatches. According to telecommunications experts, all a cybercriminal would need to successfully launch an SS7 attack are a computer runningLinux and the SS7 SDK – bothfree to download from the Internet. Once connected to an SS7 network, the hacker can target subscribers on the network while chaffing the network into allowing the hacker device is an MSC/ VLR knot. The hackers can transparently forward calls, giving them the capability to record or hear into them.TheycanalsoreadSMSdispatchestransferredbetweenphones,andtracktheposition

  4. IsSS7secure? Thetelecommunications(telecom)assiduitydevelopedSignalingSystem 7beforedigital encryption and authentication were extensively espoused. This means that SS7 dispatches and servicescan be fairly fluently heeded in onand forged. The primary security of the SS7 network is that it's an unrestricted system; only telecom drivers have access to it. End druggies and utmost hackers can not pierce the system as a whole. Unfortunately, telecom providers operating as bad actors or governmental agencies with legal accesshavefairlyunrestrictedaccesstoalltheinformationavailable in the SS7 network. Telecomproviders can also cover the SS7 network for pitfalls or intrude and identify them, but thisdoesn't help unresistant exploitation.

  5. IsSS7usedinLTE? WhileSS7was the foundation for signalling in 2G/ 3G circuit switch networks, Diameter has been introduced for 4G LTE and VoLTEpacket networks and IP Multimedia Subsystem( IMS) groundedsystems and is crucialto enabling new profit-generating IPservices. SS7 &DiameterSignalingresultenablesMNOstointroduceDiameter-basedsignalling capabilitieswithouthavingtoripandreplaceheritagestructures.Ithelpstocoverone's investments by combining SignalingTransfer Point( STP) and Diameter Signaling Controller( DSC)functionalitiesonthesame signalling routing platform. A simple yet elegant result to addressthedilemmaofsupportingheritageSS7networkswhilemigratingtoLTE/EPC/ Diameternetworks.

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