voip

Whitepapers

VoIP Capacity Model for an OFDMA Downlink

August 20, 2007 12:00am PDT

In traditional wireless networks, voice service is supported with synchronous power controlled channels and hence latency requirements were easily met. Fourth Generation Networks (3GPP2, 3GPP,...

Provided by: Huawei Technologies

Whitepapers

MAC Scheduling Scheme for VoIP Traffic Service in 3G LTE

August 20, 2007 12:00am PDT

3G Long Term Evolution, which aims for various mobile multimedia services provision by enhanced wireless performance, proposes the VoIP-based voice service through the PS domain. When delay and...

Provided by: Institute of Electrical & Electronic Engineers

Whitepapers

Increasing VoIP Capacity on WiFi Networks Through the Use of the FAIR Algorithm for MAC

August 20, 2007 12:00am PDT

As WiFi networks and IP telephony grow increasingly popular, the standard Distributed Control Function (DCF) MAC protocol in IEEE 802.11b, which is not designed to support real-time applications,...

Provided by: Institute of Electrical & Electronic Engineers

Whitepapers

Efficient Bitmap Signaling for VoIP in OFDMA

August 20, 2007 12:00am PDT

The communication system is currently undergoing a convergence to IP services. As a result, Voice over Internet Protocol (VoIP) will be commonplace in the near future. In order to maximize the...

Provided by: Institute of Electrical & Electronic Engineers

White Papers

Magic Quadrant for Unified Communications, 2007

August 20, 2007 12:00am PDT

Unified Communications (UC) offer the ability to significantly improve how individuals, groups and companies interact and perform. UC enables multiple communication channels to be coordinated. In...

Provided by: Gartner

White Papers

Estimation and Simulation of Network Delay Traces for VoIP in Service Overlay Network

August 20, 2007 12:00am PDT

The network delay is one of the most important impairments for VoIP (Voice Over IP). This paper focuses on the bi-objective optimization problem of minimizing sampling cost and also minimizing the...

Provided by: Institute of Electrical and Electronics Engineers

Blog Post

What is Voice 2.0 -- and does it matter to you?

August 17, 2007 10:38am PDT

If you want to start a buzz in the IT world these days, it seems all you have to do is take a known technology and stick a "2.0" label on it. Coined by Tim O'Reilly, Web 2.0 is easily the most...

4 Latest comment by RTHJr

Q&A

Voip Packet8

August 16, 2007 5:47am PDT

Voip Packet8 I have had packet8 for over 9 Months and it has never ran right i keep getting cut off while talking and sometimes i cannot even get connected i need help. Thank you in advance

1 Latest comment by braxton49@...

Discussion Threads

T-Mobile wants to replace your landline with its HotSpot @Home Wi-Fi service

August 15, 2007 1:24pm PDT

T-Mobile wants to replace your landline with its HotSpot @Home Wi-Fi service article root Why do you keep a landline- -E911, multiple handsets, reliability? T-Mobile's HotSpot @Home service let's...

14 Started by Bill Detwiler - TechRepublic  |  Latest comment by VASYA@...

Discussion Threads

SolutionBase: Creating a secure and reliable VoIP solution

August 15, 2007 12:32pm PDT

SolutionBase: Creating a secure and reliable VoIP solution article root Experience with hosted VoIP services? While there is definitely a lot to think about when doing VoIP in-house, small &...

3 Started by stevewea@...  |  Latest comment by S.O.S Communications

Discussion Threads

Spam over Internet Telephony (SPIT)

August 15, 2007 9:53am PDT

Spam over Internet Telephony (SPIT) Spam over Internet Telephony (SPIT) is going to be huge security concern in the near future of VoIP. More and More people are switching from PSTN to VoIP...

1 Started by navaranganr@...  |  Latest comment by navaranganr@...

White Papers

Efficient P2P Service Control Overlay Construction to Support IP Telephony Services Over Ad-Hoc Networks

August 15, 2007 12:00am PDT

Wireless ad-hoc networks are the key technology for community networks and rural regions that lack an established networking infrastructure. On the applications front, IP Telephony is also a...

Provided by: Institute of Electrical and Electronics Engineers

Discussion Threads

VoIP in a box?

August 13, 2007 4:01am PDT

VoIP in a box? article root Anyone stop to think about security and logisitics isues here? If the system uses a PSTN line in someone else's house/office then the call is a standard analog signal...

10 Started by gary.hewett@...  |  Latest comment by MyDivert

Whitepapers

Evaluation of VoIP Performance in Downlink Cellular Networks with Multihop Relaying

August 13, 2007 12:00am PDT

The authors analyze the impacts of multi-hop relaying on the quality of service of voice transmission in the downlink OFDMA communication system. It is shown that the system performance in terms...

Provided by: Institute of Electrical & Electronic Engineers

Blog Post

VoIP in a box?

August 10, 2007 12:29pm PDT

There's been a lot of buzz in the VoIP community recently about ooma, a device that the company advertises will allow you to "own your own dial tone." The key here is that you buy a box -- not a...

10 Latest comment by MyDivert

Q&A

VoIP Project

August 9, 2007 9:21pm PDT

VoIP Project I am a final year student of Bachelor of Technology(Computer Science and Engineering), from India wishing to do a final year project, as part of our curriculum, on VoIP, since it is...

3 Started by badhriya@...  |  Latest comment by Sunil N

White Papers

Monitoring Infrastructure for Converged Networks and Services

August 9, 2007 12:00am PDT

Network convergence is enabling service providers to deploy a wide range of services such as Voice over Internet Protocol (VoIP), Internet Protocol TeleVision (IPTV), and push-to-talk on the same...

Provided by: Wiley & Sons

Downloads

Walkietalkie 2.7 (Windows)

August 9, 2007 12:00am PDT

Walkietalkie is a program which allows full duplex voice communications over the internet with conferencing, encryption, and call-by-username. Just the features you need, with none of the bloat....

Provided by: Futzersoft

Q&A

high

August 8, 2007 2:26am PDT

high I WANT TO KNOW HOW I CAN CONFIGURE VOIP SUPPORT ON A CISCO 3600 ROUTER. WHICH INTERFACE I NEED TO ADD TO MY ROUTER. THANKYOU VOiP is software based... Download 'SKYPE' and install it. Try...

2 Started by arshidsumji@...  |  Latest comment by OldER Mycroft

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...