Signaling in Telecommunication Networks

Bosse, John G. van

doi:10.1002/0471224154

Cited by 8 publications

(9 citation statements)

References 0 publications

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“…The PTN backbone primarily uses the SS7 protocol [1,2,18], the Internet employs the TCP/IP prototol suite [5,12], and wireless networks use the CDMA, TDMA or GSM protocols [6,9,16]. The PTN backbone is connected to the Internet and wireless networks via IP and wireless gateways, respectively.…”

Section: Ptn Overviewmentioning

confidence: 99%

“…The older in-band technique combined signaling and transmission over copper wires, but it was ineffieient and did not support advanced services [2]. Modem out-of-band communication between PTN central-office switches occurs via dedicated (private and public) X.25 data networks using the SS7 protocol for setting up and tearing down calls, establishing billing and returning busy signals [18].…”

Section: Signalingmentioning

confidence: 99%

“…In-band signaling uses multi frequeneies (MF) and dual tone multi frequeneies (OTMFs) -tones generated using telephone touchpads -to send control signals [2]. MFs send control signals directly to telephone trunks and switches.…”

Section: Signalingmentioning

confidence: 99%

“…Out-of-band signaling using SS7 has largely replaced in-band OTMF for the U.S. PTN [2,19]. An international standard, SS7 govems network architecture and configuration, and message transport [1,18].…”

Section: Signalingmentioning

confidence: 99%

“…However, private branch exchanges (PBXs) used by large enterprises commonly rely on in..;band signaling, and are therefore vulnerable to colored box attacks [10]. Moreover, certain advanced services engage in-band signaling [2]. E.g., caller ID requires that the caller's telephone number and the date/time of the call be sent in ASCII format within the first 4-second silent interval in the ringing cyc1e.…”

Section: Ptn In-band Attacksmentioning

confidence: 99%

See 4 more Smart Citations

Public Telephone Network Vulnerabilities

Lorenz¹,

Keller²,

Manes³

et al. 2002

Database and Application Security XV

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Tbe convergence of public telephone networks (PTNs), wireless networks and the Internet makes it possible to disrupt vital information and communications systems from afar with software. PTN vulnerabilities are also growing due to system complexity, deregulation, increasing numbers ofhighly-skilled attackers, and the automation of attacks. Tbis paper analyzes PTNs vulnerabilities, and presents an attack taxonomy. Tbe taxonomy considers security threats posed by in-band attacks, out-of-band attacks, wireless attacks and Internet attacks.

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Section: Ptn Overviewmentioning

confidence: 99%

Section: Signalingmentioning

confidence: 99%

Section: Signalingmentioning

confidence: 99%

Section: Signalingmentioning

confidence: 99%

Section: Ptn In-band Attacksmentioning

confidence: 99%

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Public Telephone Network Vulnerabilities

Lorenz¹,

Keller²,

Manes³

et al. 2002

Database and Application Security XV

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Introduction

Pujolle¹

2007

Management, Control and Evolution of IP Networks

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Using Signaling Information in Telecom Network Forensics

Moore¹,

Meehan²,

Manes³

et al.

IFIP — The International Federation for Information Processing

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Telephones are often used to facilitate criminal and terrorist acts. The signaling core of public telephone networks generates valuable data about phone calls and calling patterns, which may be used in criminal investigations. However, much of this data is not maintained by service providers and is, therefore, unavailable to law enforcement agencies. This paper presents techniques for collecting and storing important data pertaining to phone calls and calling patterns. The techniques leverage existing telecommunications network resources, and address the long-term storage issues of massive amounts of call record data.

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Signaling in Telecommunication Networks

Cited by 8 publications

References 0 publications

Public Telephone Network Vulnerabilities

Public Telephone Network Vulnerabilities

Introduction

Using Signaling Information in Telecom Network Forensics

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