Abstrakt: |
Summary: From basic concepts to future research directions, the VoIP Handbook provides technical information on all aspects of VoIP. Expert contributors explore the range of VoIP applications, including smart phones and access to emergency services. Highlighting the security threats and vulnerabilities related to VoIP technologies, the text discusses compression techniques for VoIP over wireless interfaces. It evaluates the performance of VoIP calls over 802.11b and 802.11e WLANs in infrastructure and ad-hoc mode architectures. It also details a methodology for evaluating VoIP performance prior to network implementation. |