When switching your business phones to VoIP, can you keep the same numbers?
Could you explain the difference between Ethernet and WAN?
Can I use my PC as a headset for VoIP or Skype?
What is the best way to build a distributed VoIP enterprise system?
Can outsiders access my VoIP line and gather confidential data?
VoIP market predictions for 2008
Push-to-talk implementation using SIP protocol
Making the career path commitment
Is a Nortel or Cisco VoIP certification more valuable to an IT professional?
IVR and disaster recovery
What is communication-enabled business processes (CEBP)?
Unified communication applications for businesses with remote workers
Comparing and contrasting enterprise 2.0 and web 2.0 within the context of unified communications
Do employers care more about certification, or do they care more about experience?
I've decided to invest in some additional training or education to boost my employability in VoIP.
Is company-provided CCVP training worth signing a pay-back agreement?
Quality calibration in the call center for multiple languages
Will more bandwidth fix latency and jitter in your network?
Call termination gateway requirements
SIP phone quality and clarity solutions
Is there a VoIP phone more suitable for someone with hearing problems?
Setting up VoIP with Asterisk
Bandwidth requirements for VoIP
What is the difference between B2BUA and proxy in SIP protocol?
What are the hidden costs associated with implementing VoIP?
What are the risks associated with Skype?
What would happen to my VoIP service if the network failed?
I heard it's difficult to get VoIP through a firewall. Is there any way that it could be done?
How can a business ensure VoIP quality of service (QoS)?
What can a VoIP phone do that a landline phone cannot?
Implementing an IP phone system in a SMB
What kind of hardware is required for unified communications if there is already a SIP network in pl
How does the Cisco Call Manager VOIP system compare to Mitel's 3300 VOIP system?
Can Asterisk interact with other vendor-specific PBXes?
Can you implement VoIP without VoIP phones?
VoIP network assessment tips
What is the easiest way to set up an IP phone over an office WAN?
When using VoWIP, how are the free space transmissions between the hand set and the AP secured?
What security practices should I keep in mind when designing my VoIP network?
What is the difference between CRTP and Ethernet?
What are the benefits of SIP trunking over T1 trunking?
How do I solve drifting issues in my VoIP network?
What equipment is needed to set up a VoIP network from a new satellite service?
How can we integrate SIP softphone or IP Phone or Asterix IP PBX into our Skype accounts?
Can you suggest some good open source RTP stacks for windows development?
Why is SIP not good for transporting large amounts of data?
What are the criteria for evaluating an IP telephony system in a converged network?
What is the difference between a PSTN gateway and media gateway?
Is a unified communications application the best fit for a teleworker environment?
Deciding between Cisco and Alcatel IP telephony
What is the difference between analog phone equipment and an IP phone?
Can SIP and H.323 run simultaneously on a Cisco CallManager?
Implementing a cost-effective VoIP network
What is the difference between a VoIP client and an IMS client?
VoIP encryption algorithm in a PBX software like Asterisk?
Basic VoIP network setup
Why is VoIP authentication essential?
Converting voice signals into bit streams or Hex format?
Is a server necessary to use an IP phone?
Can setting up a VPN help you get around blocked VoIP ports?
What VoIP certifications does a system administrator need?
Are there options, other than VoIP, hybrid or a traditional PBX, for enterprise-level communications
Softphones in a unified communications (UC) strategy? Who are UC market leaders?
What is the difference between unified communications and unified messaging?
What is an E&M line? What is the difference between a 2 wire and 4 wire E&M?
What is a short description of the difference between a gatekeeper and a gateway?
Is there a simple ROI calculator for IP PBX deployment? Where can I find a download of it?
Is there an Asterisk SS7 solution available?
What is needed to use Voice over WLAN with a 3Com NBX 100?
Is it possible to develop VoIP in Java for use on the LAN without using a PBX or a phone?
What considerations do I need to make when setting up a VoIP system to our remote office?
How can click-to-dial (click-to-call) be enabled at remote offices?
Can Caller ID on VoIP calls be customized?
Can Asterisk be used only as an IVR?
Why is UDP used more in VoIP than TCP?
Can VoIP work on a GPRS-enabled mobile phone?
When should a VoIP system be analyzed and with what tools?
Is IP Centrex legal?
What is the difference between VoIP, CTI and IP telephony?
How do you select a communications partner?
How can a small business achieve high quality VoIP?
What are the differences between Asterisk and Brekeke?
Why do VoIP calls remain active after the phone call is ended?
How is average repair time determined for both a TDM PBX and a VoIP system?
How can VoIP be integrated into an existing PBX system?
How does the service provider differentiate between data and VoIP as data?
Does STUN only work for UDP? Follow-up to how NAT Traversal and STUN work.
Is SIP really better than HTTP? Follow-up to why use SIP.
How does the cellular phone company charge for IP-based calls?
How can choppiness during a phone call be eliminated?
Does Spanning Tree Protocol have an adverse effect on VoIP?
Why should I use SIP for VoIP?
Is there a provider or out-of-the-box solution that will monitor a network comprised of hardware fro
What is the difference between VoIP and VoFR?
Is there a generic blueprint for an IP-based call center?
What is the difference between VoIP and IP telephony?
How do we stop Wi-Fi signal-hopping?
Can VoIP and PSTN PBX work together?
How can we run D-link DPH-140S phones on Cisco CallManager Express?