News

Voice networking and VoIP

November 08, 2006 08 Nov'06
VoIP security safeguards -- they may be there already

Protecting your VoIP system may be easier than you think, especially since many of the necessary tools are already there.
November 01, 2006 01 Nov'06
Juniper Networks' enterprise router takes aim at Cisco branches

Juniper's new branch office J-Series routers provide all-in-one security, VoIP, WAN acceleration box to rival Cisco's ISR router.
November 01, 2006 01 Nov'06
VoIP convergence: Managing staffing issues

Companies making the transition to IP telephony must find a way to converge their voice and data networks -- and the employees who work on them.
October 31, 2006 31 Oct'06
Net neutrality: All or nothing, or somewhere in between?

The notion of net neutrality can hinder VoIP QoS guarantees and thus has incited a contentious debate.

October 25, 2006 25 Oct'06
Cisco launches mega videoconferencing system

Cisco Systems Inc. has talked about TelePresence and demonstrated it, and now it's finally something enterprises can buy, but at six figures it's a high price to pay.
October 24, 2006 24 Oct'06
How does the service provider differentiate between data and VoIP as data?

For our mobile devices in trucks, we use GSM/GPRS communication. Our customers are paying for a certain data amount -- depending on the service package to which they subscribe. We use a modem in our device, which can do both data and voice. But as I...
October 23, 2006 23 Oct'06
Comparing VoIP vendors

For many companies, the tough decision isn't whether to use IP telephony or not -- it's which vendor to choose. We've collected some of Carrie Higbie's tips and tricks for vendor selection, garnered from her "Ask-the-Expert" section. Carrie ...
October 23, 2006 23 Oct'06
Comparing VoIP vendors

For many companies, the tough decision isn't whether to use IP telephony or not -- it's which vendor to choose. We've collected some of Carrie Higbie's tips and tricks for vendor selection, garnered from her 'Ask-the-Expert' section. Carrie ...
October 22, 2006 22 Oct'06
EMC plays catch-up with Clariion

Clariion arrays now have support for both Fibre Channel and iSCSI in one box, as well as other features that competitors have been using against EMC for some time.
October 19, 2006 19 Oct'06
Xiotech, Pillar scale down, support iSCSI

Xiotech, Pillar introduce entry-level iSCSI arrays; Overland loses Dell deal; EMC and IBM report earnings.

October 16, 2006 16 Oct'06
Cisco ramps up unified communications tools

Cisco last week released a host of new products to enhance its suite of unified communications tools, including an IP phone that's easier for end users to accept.
October 11, 2006 11 Oct'06
Does Spanning Tree Protocol have an adverse effect on VoIP?

Do you know if Spanning Tree has an adverse effect upon VoIP? If so, what is the best way to provide LAN-based switch redundancy to VoIP gateways?
October 11, 2006 11 Oct'06
Briefs: VoIP management; mobile E911; and Windows 2003 support

Qovia releases its new VoIP management system; 911 Enable made E911 mobile and Codima announced support for Windows 2003 server.
October 01, 2006 01 Oct'06
Column: The myths and realities of VoIP security

Security is often cited as one of the primary reasons organizations have not deployed VoIP. The biggest VoIP security threat is not making headlines. Zeus Kerravala, Yankee Group analyst, cuts through the hype so network managers can maximize the ...
September 26, 2006 26 Sep'06
Voice over IP Fundamentals: Chapter 9, 'Billing and Mediation Services'

Voice over IP Fundamentals: Chapter 9, 'Billing and Mediation Services'
September 25, 2006 25 Sep'06
IP telephony unites New Orleans nonprofit after Katrina

Hurricane Katrina nearly disbanded the Catholic Charities Archdiocese of New Orleans, until the nonprofit rolled out a hosted voice solution
September 18, 2006 18 Sep'06
VoIP user experience tested

Most VoIP monitoring is focused on quality of service, but one new company is taking a different tack and looking at the quality of experience.
September 14, 2006 14 Sep'06
Calling network management vendors: It's time to get on board with VoIP

Despite the hype, full-scale VoIP deployments are hard to find. According to our research at Yankee Group, over 80% of U.S. enterprises have VoIP deployed somewhere in their organization in some shape or form. This includes departmental trials and ...
September 12, 2006 12 Sep'06
Is there a generic blueprint for an IP-based call center?

Is there a generic blueprint for an IP-based call center? Where could I find one?
September 11, 2006 11 Sep'06
VoIP still a confusing area for SMBs

A study released at today's VON conference in Boston suggests that SMBs -- despite their growing use of VoIP -- are still confused about VoIP technology.
September 06, 2006 06 Sep'06
Fast Guide: VoIP encryption

A guide to encryption within VoIP networks
September 06, 2006 06 Sep'06
VoIP startup untethers would-be mobile workers from wireline office phones

VoIP startup DiVitas Networks has voice-over-WiFi-to-cellular technology in the works that gives endusers access to enterprise apps and puts dual-mode handset management in the hands of network administrators.
September 06, 2006 06 Sep'06
VoIP startup untethers would-be mobile workers from wireline office phones

VoIP startup DiVitas Networks has voice-over-WiFi-to-cellular technology in the works that gives endusers access to enterprise apps and puts dual-mode handset management in the hands of network administrators.
September 05, 2006 05 Sep'06
VoIP outsourcing: Save money and gain flexibility

VoIP outsourcing is the way to go for organisations looking to deploy voice services quickly and flexibly without a major investment in skills and upkeep.
September 05, 2006 05 Sep'06
VoIP outsourcing: Save money and gain flexibility

VoIP outsourcing is the way to go for organizations looking to deploy voice services quickly and flexibly without a major investment in skills and upkeep.
September 04, 2006 04 Sep'06
Revamped Cisco WAFS worth the wait, users say

Months late, Cisco has finally released a combined Wan optimisation and WAFS product, while startups like Riverbed have been snapping up the customers. But some Cisco beta testers say it has been worth the wait.
September 04, 2006 04 Sep'06
Instant messaging boom brings security concerns

Instant messaging (IM) has made significant inroads to the enterprise, but using public IM applications may open up security holes in the network.
August 30, 2006 30 Aug'06
VoIP outsourcing: Save money while gaining flexibility

VoIP outsourcing is the way to go for firms looking to deploy voice services quickly and flexibly without a major investment in skills and upkeep.
August 29, 2006 29 Aug'06
AT&T breach affects 19,000 customers

Online outlaws hacked into an AT&T computer system and stole credit card data on thousands of customers. AT&T has offered to pay for credit monitoring services for those affected.
August 22, 2006 22 Aug'06
Column: VoIP applications fuel the next wave of VoIP innovation

The first phase of VoIP is nearing the end and corporations will soon find a variety of third-party desktop applications that run on VoIP. Has VoIP improved the day-to-day for end users?
August 21, 2006 21 Aug'06
Briefs: VoiceCon in the news

This week at VoiceCon we saw everything from managed VoIP services to IP phones made to make mobile workers right at home, wherever they are.
August 16, 2006 16 Aug'06
Cisco struggles with SIP firewall flaw

Cisco admits it can't reproduce a SIP security flaw in its PIX firewall that was first identified by a researcher at Black Hat.
August 16, 2006 16 Aug'06
Briefs: VoIP in the news

Asterisk maker Digium gets major funding; Quintum's VoIP switch offers backup option for branch office; The Cisco Store makes the case for unified communications.
August 15, 2006 15 Aug'06
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.
August 15, 2006 15 Aug'06
Cisco boosts VoIP certification

The upgraded CCNP midlevel Cisco certification now incorporates VoIP, security and wireless to boost converged network skills among enterprise professionals.
August 06, 2006 06 Aug'06
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.
August 03, 2006 03 Aug'06
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.
August 02, 2006 02 Aug'06
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.
October 12, 2005 12 Oct'05
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.
September 11, 2005 11 Sep'05
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.
July 26, 2005 26 Jul'05
VoIP encryption to have 'Pretty Good Privacy
June 13, 2005 13 Jun'05
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.
August 27, 2004 27 Aug'04
Over-specify when buying low cost replacement for Frame Relay

A project manager reveals how a VPN saved £275,000 a year
April 20, 2004 20 Apr'04
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.