Effective telecoms security is just as important to the operational health and safety of an organisation as IT security, and Context offers a range of services designed to protect against attacks on telephony networks. These include security assessment and auditing services, to help protect against attacks on telephone PBX, Interactive Voice Response (IVR) and Automatic Call Distribution (ACD) systems. Left unsecured, these systems could be exploited by external attackers or internal staff intending to perpetrate toll fraud and the theft and resale of long distance call services. We also assess the security of voicemail systems, through which it may be possible to access confidential information.

Other services include testing the security measures that protect staff working remotely or from home; the physical security of the telecoms infrastructure; the telecom carrier's system integrity; and power supply backup facilities. We can also advise clients on voice network design, security product selection, installation and ongoing technical support.

Voice network security assessments are based on a combination of war dialling and the use of the Enterprise Telephony Management (ETM) tool from SecureLogix. This mixed approach to testing enables us to carry out a comprehensive review of both inbound and outbound network traffic.