Voice networking and VoIP

Cisco says it can't reproduce PIX flaw

Ever since a researcher at Black Hat outlined a flaw in the PIX firewall, Cisco has been trying to reproduce the security hole. So far, the company has been unsuccessful. Continue Reading

By

• Bill Brenner

Cisco boosts VoIP certification

The upgraded CCNP midlevel Cisco certification now incorporates VoIP, security and wireless to boost converged network skills among enterprise professionals. Continue Reading

By

• Amanda Mitchell, News Editor

VoIP call quality on the decline

Advances in technology have made VoIP more common, but that hasn't stopped VoIP call quality from dropping steadily over the last 18 months, according to a recent study by Brix Networks. Continue Reading

By

• Andrew R. Hickey, News Writer

Vendors reject preferential knowledge sharing

While Cisco continues to investigate a potential PIX firewall flaw, it and other vendors say sharing security information quickly and indiscriminately is always the best policy. Continue Reading

By

• Michael Mimoso, TechTarget

Possible Cisco zero-day exploit revealed at Black Hat

Details of an alleged flaw related to SIP and PIX appliances, briefly mentioned in a Wednesday Black Hat presentation, are being kept under wraps as Cisco and US-CERT investigate. Continue Reading

By

• Michael Mimoso, TechTarget

Case study: A valuable solution

A new telephony and call centre solution from Inter-Tel has transformed the way that e.surv Chartered Surveyors is able to work. Continue Reading

Be careful you don't get more than you pay for with VoIP

Implementing VoIP is attractive for all companies in particular SMBs. However, there are issues to address that may cost you more than what you save Continue Reading

By

• Joe O’Halloran, Computer Weekly

Voicing concerns on Skype

Skype has blazed a trail in the Voice over IP arena; its popularity hasn’t gone unnoticed by the hacker community however Continue Reading

By

• Joe O’Halloran, Computer Weekly

Quiz: What's your infosec IQ?

We've collected our toughest questions to see how well you stand up to a challenge. Put your knowledge to the test and let us know how you do. Continue Reading

VoIP turns up the heat on firewalls

New research shows that many organizations are increasingly concerned about VoIP security and plan to augment their firewalls within the next year, changing the landscape of the firewall market. Continue Reading

By

• Eric Parizo, Senior Analyst

VoIP and IPT are hot tickets for the IT industry

Voice over IP (VoIP) and IP telephony (IPT) are the hot tickets in the current IT industry. In the space of two weeks in late May and June 2005, two major European trade shows — VON 2005 and VoIP for Business —have each exhibited a welter of products and services that seem wonderfully compelling. Continue Reading

By

• David Bicknell

VoIP encryption to have 'Pretty Good Privacy

 Continue Reading

By

• Shawna McAlearney, News Editor

Gartner underscores five overblown threats

Two Gartner analysts debunk five overhyped security risks they claim are causing companies to miss out on some key emerging technologies. Continue Reading

By

• Amy Storer, News Writer

Whisky galore with IP

Chivas can toast future success thanks to a cost-effective IP data network Continue Reading

IP everything, essentially

What are the fundamental deliverables of IP networks? How can you use IP networks to gain financial benefits in addition to... Continue Reading

The basis of profitability

Not so long ago, you didn't have much choice - your IT and communications requirements were acquired, implemented and maintained... Continue Reading

Management matters

Cath Everett finds out how you stay on top of networking. What are the management issues related to your telecoms and networks... Continue Reading

Over-specify when buying low cost replacement for Frame Relay

A project manager reveals how a VPN saved £275,000 a year Continue Reading

By

• Peter Skipwith

Cisco SNMP flaw allows for DoS attacks

A coding flaw in Cisco's IOS software for certain routers and switches could leave networks vulnerable to denial-of-service attacks. Continue Reading

By

• Anne Saita, TechTarget

The VPN dilemma

With traditional networks choking on data, Liz Biddlecombe investigates the pros and cons of managing a VPN yourself or... Continue Reading