White Papers

White Paper Summary: VoIP Security is becoming ever more important as high profile fraud cases hit the press. Strong authentication of users helps mitigate these attacks, a fact recognised by 3GPP in the IMS security framework. But 'VoIP over IPsec' poses problems in wireline networks when it encounters NATs. This paper examines the problems when IPsec meets NAT and looks at TISPANs solution to the problem.

Now available to businesses of all sizes, VoIP is experiencing rapid market adoption, offering the ability to reduce costs, improve productivity and streamline network management by converging voice and data communications over a single IP network. However, investigating and understanding the options available and deploying VoIP technology can be a challenging undertaking for many small and medium-sized businesses.