New exploits against VoIP continue to emerge, but experts say these demonstrations reveal the need for vigilant security and are not fatal flaws to the technology. At Black Hat this month researchers ...

Voice over Internet Protocol (VoIP) implementations are becoming more common. As a result, more networks and legacy systems are being connected to public networks, allowing organizations to reduce ...

BOSTON — Those who want to operate secure VoIP networks must be mindful of myriad threats, because the technology is susceptible to vulnerabilities that might be foreign to traditional ...

The main challenge: Even if an enterprise wants to interconnect different IPT islands, there is no real incentive for two different vendors to interoperate. VoIP/IPT systems have proliferated to the ...

A reader says he has set up an IP PBX at his headquarters and wants to link it to VoIP phones in two remote offices via a VPN. The VPN serves dual-duty to both grant access to data servers at the main ...

The company's new SIP-7 (Session Initiation Protocol 7) Services allow SIP providers to connect to Verisign's SS7 network. By offloading the complexity of interworking with the SS7 system, VoIP ...