• VoIP protocol insecurity

    Like many Internet protocols, SIP was designed with simplicity, not security, in mind. And, although H.323 was created to meet broader goals, security issues have plagued it as well. Expert Lisa Phifer examines some of the vulnerabilities in this ...  Continue Reading

  • Integrating Citrix server and gateway for VPN

    We're looking to integrate a Citrix P4 server with a Citrix Access Gateway 4.2 for VPN access. I believe the Citrix Access Gateway works with VoIP, although I've heard some reservations about integration. If so, which particular VOIP systems are ...  Continue Reading

  • Five VoIP security recommendations

    Before beginning a successful VoIP rollout across your organization, there are several things you should consider.  Continue Reading

  • VoIP power calculator

    For the past several years, one of the lurking gotchas to implementing VoIP was supplying enough power. In this tip, Tom Lancaster explores why, and how, to create a power budget prior to your VoIP implementation.  Continue Reading