Nortel Voice Security

The official Nortel news blog

Category Archive: Hacking VoIP

VoIP Attacks are Real

Today’s guest post is by Eric Winsborrow, the Chief Marketing Officer of Sipera Systems. Eric has more than 20 years experience in both security and unified communications. He has a broad depth of VoIP and Security experience having senior positions for companies such as McAfee as VP of Product Marketing, Symantec, Sygate, Nortel, Lucent and Cisco. Lawrence

Enterprises are increasingly deploying real-time, unified communications such as VoIP, IM, video and others to increase productivity, reduce costs and improve collaboration. Enterprises can fully experience unified communications when IP PBXs and real-time communications applications are extended beyond the enterprise to soft phones on PCs, hard phones at remote sites, and WiFi/dual-mode phones.

It is critical for enterprises to understand the …

Read the rest of this entry »

Eavesdropping on a SIP call – How difficult is it?

Besides posters from Nortel’s Voice Security Eco System, I will be having members of Nortel’s technical community post as well. Today, Stephan Varty of my Advanced Security Solutions R&D Team joins us. Stephan has been at Nortel for more than 10 years in various security related roles. He holds the CISSP certification. Lawrence

Many people assume a certain level of confidentiality is assured when they use their phone. Concerns have been raised about the increased risk of someone eavesdropping on a VoIP call compared to a traditional PSTN call. Although the concern applies similarly to other VoIP protocols such as UNIStim, H.323, or SCCP as well, what follows is an opinion on the …

Read the rest of this entry »