voip

Blog Post

10 things you should know about VoIP over wireless

August 6, 2007 6:44am PDT

This information is also available as a PDF download. Voice over IP (VoIP) can provide substantial savings on your telephone service by allowing you to use an IP network to make phone calls...

Blog Post

Review: Jitsi the ultimate SIP voice and video client

July 16, 2012 10:59am PDT

Jitsi lets you audio and video conference on your terms using your own private SIP server or any SIP service.

5 Latest comment by zerubbabel

Blog Post

Encrypt calls on your Android device with RedPhone

April 4, 2011 1:25pm PDT

Whisper Systems offers call encryption on Android with RedPhone. Chad Perrin describes how it works and where the potential security questions exist.

12 Latest comment by apotheon

Articles

Meet VoIP bandwidth requirements without crippling your network performance

February 14, 2007 8:00am PST

If you don't consider your bandwith requirements when building a VoIP infrastructure, you'll wind up with an unreliable system and an overtaxed WAN. George Ou looks at audio compression algorithms...

7 Latest comment by mike82

Blog Post

The hot certifications right now: Cisco's CCNA Voice, CCVP, and CCIE Voice

January 16, 2009 6:00am PST

The Cisco Certified Voice Professional (CCVP) is the sixth highest paying certification for 2009 in a recent survey. David Davis explains your options for achieving Cisco's various VoIP...

6 Latest comment by Clara James

Articles

The top five advanced VoIP features your business needs

March 2, 2007 6:36pm PST

Small businesses can benefit from some of the more advanced VoIP feature sets in unique ways, and the right set of VoIP features can make your small business look much bigger in the eyes of your...

6 Latest comment by Unknown

Articles

SolutionBase: Configure Asterisk to support a T1 PRI connection

July 23, 2007 12:00am PDT

Setting up an Asterisk PBX server won't do you much good if you don't connect it to the outside world. In this article, Brian Smith shows how to configure Zaptel drivers and connect an Asterisk...

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Blog Post

Five Exchange 2010 gotchas and how to handle them

October 20, 2010 7:49am PDT

Before upgrading to Exchange 2010, there are five points of caution that administrators should understand. Scott Lowe discusses these Exchange 2010 gotchas and explains how to mitigate each one.

9 Latest comment by Lazarus439

Blog Post

Keep hackers from eavesdropping on VoIP calls

June 29, 2007 10:53am PDT

VoIP technology is becoming more popular because it costs less than traditional PSTN phone service -- and in the case of long-distance and international calls, it often costs a lot less. In...

9 Latest comment by game_insomniac@...

Articles

Discover workarounds for fax over IP challenges

October 13, 2006 7:00am PDT

If you've tried to send a fax using a VoIP network, you're aware of the potential problems. Deb Shinder describes the fax over IP, or FoIP, process and how you can minimize glitches.

10 Latest comment by hunterpryan@...

Articles

Make a SIP-based VoIP network more secure

January 5, 2007 8:00am PST

The Session Initiation Protocol (SIP) has gained ground as a popular call-signaling protocol for a number of reasons, but security isn't necessarily one of them. Adding SIP devices to your VoIP...

1 Latest comment by georgeou

Blog Post

Steve Jobs proclaims the post-PC era has arrived

June 2, 2010 7:01am PDT

On Tuesday, Steve Jobs said we've reached the beginning of the post-PC era, while acknowledging PCs have "taken us a long way" and that the transition could be lengthy, and uncomfortable for some.

164 Latest comment by Tim Acheson

Blog Post

Must-have features of a VoIP phone service

August 1, 2012 9:32am PDT

Here's a breakdown of the must-have features and an outline of a few available plans.

5 Latest comment by bicomsystems

Blog Post

Become a VoIP expert

June 8, 2007 10:38am PDT

Voice over IP is fast becoming a standard technology in organizations of all sizes, from the small business to the enterprise. Yet it's a technology that most IT professionals probably didn't...

4 Latest comment by rfc3261

Articles

Understanding IP private branch exchange (PBX)

September 29, 2006 7:00am PDT

Private branch exchanges (PBXs) handle call switching and routing within an organization, and IP PBX systems are the next generation of Internet-based PBX communications. Deb Shinder gives an...

3 Latest comment by JohnTeller

Articles

Deploying VoIP: Weigh the pros and cons of convergence

May 31, 2007 7:00am PDT

To converge or not to converge -- that is the question. When deploying VoIP in your organization, should you combine data and voice networks, or should you keep them separate? Deb Shinder weighs...

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Articles

VoIP software and hardware: What's out there and what it can do for you

September 22, 2006 7:00am PDT

You may already have chosen a VoIP provider, but have you considered what physical equipment you'll need for your calls? Deb Shinder gives an overview of VoIP software and hardware, including...

3 Latest comment by Leee

Articles

Four obstacles to implementing VoIP

May 11, 2007 6:29pm PDT

While VoIP's popularity continues to grow, it still has some obstacles to overcome before it becomes ubiquitous in corporate environments. Deb Shinder lists the four greatest obstacles and...

10 Latest comment by cfriedrich80@...

Blog Post

Top three technologies all IT consultants should learn

September 30, 2011 8:31pm PDT

Keep your IT consulting skills relevant by familiarizing yourself with the following three technologies.

6 Latest comment by apacsydney

Articles

Consider these legal issues when planning a VoIP implementation

November 10, 2006 8:42pm PST

Technology's not the only thing to worry about when planning a VoIP implementation—there are also legal issues to take into consideration. Deb Shinder examines the most common legal issues to take...

1 Latest comment by Realvdude