Q&A: Is Voice over Internet generally more or less secure than a regular landline?
Question by city8of8angels: Is Voice over Internet generally more or less secure than a regular landline?
I have about had it with AT&T. Ever since their strange merger, things have only gone downhill.
First of all, never in our (I and my husband) lives have we had a $ 60 landline phone bill. We do not like to use that phone for anything. The only reason we have a landline is for professional/business purposes.
Second, somebody who claimed to be from AT&T had made an attempt to tinker with our connection. If we did not live on a military base and all visitors had to be screened and approved, who knows who these people where and what they were trying to do.
So, here I am wondering if VOIP is worse or better with that kind of stuff. I would really appreciate knowledgeable opinions. Thank you!
Best answer:
Answer by Mr. VoIP
No consumer electronic communications is absolutely secure or tamper proof. We all know that telephones can be tapped, legally and illegally. If the Feds and law enforcement want to tap your lines, they can do so legally with a court order (or just claim national security reasons).
But, the same holds true with VoIP. Technically speaking, VoIP is more difficult to tap, but it can be done with the right equipment. And, VoIP companies are required by law, or by agreement, to allow law enforcement to tap lines if required too.
So, when it comes to security, nothing is absolutely secure.
Now, some VoIP services are starting to encrypt their VoIP data while traversing over their own networks. So, in those cases, it is secure from random tapping over the Internet. But, as soon as the connection terminates to a real telephone that connects to the PSTN landline network, it is no longer truely secure from taps.
Skype is well known to encrypt their client data while traversing over the Internet. So, they are about as secure as you can get from a public service.
But, to address your concerns about cost, VoIP will always cost you less (for comparable service features) than any PSTN or cell phone service. Even if a person keeps their “basic” landline service for emergency backup (no extras), VoIP will save them considerable money when it comes to having a 2nd phone line and long distance calling.
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Does VOIP (voice over IP) interfere with your internet connection (download/upload speeds)?
Question by xbadwolfx: Does VOIP (voice over IP) interfere with your internet connection (download/upload speeds)?
Best answer:
Answer by Jim Maryland
Technically it does, but only minimally for typical broadband users. I used to have SunRocket (before they closed down) and I seem to recall that it only needed up to 80Kbps max for bandwidth. Given most offerings are in the Mbps, a few Kbps is not normally going to be noticed.
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Categories: VOIP Questions Tags: connection, download/upload, interfere, internet, over, speeds, voice, VOIP
Can someone explain Voice over IP Chat to me?
Question by Rhythmn is my life: Can someone explain Voice over IP Chat to me?
I have a friend who wants to get me on it. What is it, exactly, and how do I do it?
Best answer:
Answer by David D
You speak into a microphone. Your computer converts the sound into a digital signal and sends it over a network to another client. It is then converted back into audio for the other person to listen to.
Its basically like a telephone, but using the Internet instead of the normal phone network.
How you do it depends on which VoIP system you use, which has to be compatible with your friends. Ask them how to set it up – they know what software they are using and already have it running at their end.
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Q&A: VOIP – Voice Over Internet Protocol; how reliable is this communication solution?
Question by Shaula Brandt: VOIP – Voice Over Internet Protocol; how reliable is this communication solution?
For the company I work, I am looking into possible new communication services. I have heard of VOIP, but I would like to hear from someone who has experienced it to know what to expect. Is this solution reliable and worth the investment. I am told we would have to replace all our current phones, but the cost savings for the services would pay for the investment in the first year.
Best answer:
Answer by Rawr_chomp
VOIP works very well as long as you have an internet connection. If your internet connection goes down, your phones will also not work. I have seen this become a major issue in the past.
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Categories: VOIP Questions Tags: Communication, internet, over, protocol, reliable, solution, this, voice, VOIP
Voice Over IP Phone Makes Communication Hurdle Free
The desire of saving communication cost has compelled organizations – from small, medium to large – to opt for VoIP solutions. Voice over IP phone is popular for a number of reasons including reliability, cost effective rates, scalability, easy maintenance, business-friendly features and maintenance by in-house staff. To get voice over IP phone service, customers need a PC along with the internet connection. Voice over Internet protocol phone service assists users in getting transferred data voice and images through a same line.
There are a number of advantages associated with the use of voice over IP phone. Two of the common advantages include:
Voice over IP phone makes a number of things easy than traditional phone networks. Such a phone can be carried antwhere along with the users. VoIP services require the only thing is that good Internet connection.
Compared to traditional phones, VoIP phone is much economical. The phone service carries data and voice as well.
Users need high speed Internet (broadband connection) to use voice over IP phone service. The cost of the service depends on a number of factors including which provider the user selects for his/her service, the type of plan he/she decides upon, and whether he/she aims to make long distance calls.
Of late, the online as well as offline market is packed with a number of companies offering their services at economical rates. For small sized companies, hosted PBX phone systems are also come up. The services save colossal amount of customers as they do not require to buy or maintain in-house equipments.
There are a number of companies available providing voice over IP phone service targeting small, medium and large businesses. If you have small business, then contact a legitimate business VoIP provider as it serves small businesses. Local VoIP providers are also present, but they do not offer much features. Reputed and leading VoIP providers provide all the features at economical rates, and quality customer service.
Telservnet.com specializes in all communication options and is one of the best VoIP providers for all types of organizations. We provide the best Voice Over ip Phone services to traditional communication systems.
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Categories: VOIP Articles Tags: Communication, FREE, Hurdle, Makes, over, PHONE, voice
Performance Evaluation of Voice Over Internet Protocol Reviews
Performance Evaluation of Voice Over Internet Protocol
This is a NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF COMPUTER SCIENCE report procured by the Pentagon and made available for public release. It has been reproduced in the best form available to the Pentagon. It is not spiral-bound, but rather assembled with Velobinding in a soft, white linen cover. The Storming Media report number is A875114. The abstract provided by the Pentagon follows: Voice over Internet Protocol (VoIP) was developed to emulate toll services with lower communication cost. In VoIP applications, voices are digitized and packetized into small blocks. These voice blocks are encapsulated in a sequence of voice packets using the Real-time Transport Protocol (RTP) and delivered by the User Datagram Protocol (UDP). To help VoIP applications deal with unpredictable network performance, the Real-time Transport Control Protocol (RTCP) is developed to monitor the performance of RTP packets and provide feedback to the VoIP applications. The feedback on packet delay, jitter, and loss rate enables the applications to adapt to network conditions to maintain a certain level of voice quality. With this architecture, the quality of service of VoIP relies on the effectiveness of the RTCP network performance report mechanism. This research collects RTCP performance reports from live traffic over real networks and compares their values with the statistics derived from direct measurements of RTP packets to evaluate the effectiveness of RTCP. The live experiments were conducted on networks resembling respectively, Local Area Network (LAN), Wide Area Network (WAN), campus network, and encrypted wireless LAN. Results from these experiments show that RTCP is effective for low delay networks but RTCP performance reports can be inaccurate for networks with large, volatile delays.
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Categories: VOIP Products Tags: Evaluation, internet, over, Performance, protocol, Reviews, voice
Discuss the pros and cons of Voice Over IP?
Question by jasmine112098: Discuss the pros and cons of Voice Over IP?
Best answer:
Answer by frozenstorms
VoIP can take a significant chunk out of your internet bandwidth, and if it is unstable/slow, you might get poor quality/connectivity; however, on a corporate level, the upgrades to the internet, the new hardware, etc., is almost always justified by the large amount of money saved within a few years.
It might be prudent to note that in the case of a power outage, your phones would be rendered useless, which is often not the case with POTS, as the phone is powered through the phone line, though most people are completely dependent upon wireless receivers nowadays, which rely on a power source. But an “old school” phone is still useful for emergencies when using a POTS.
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Voice over IP Fundamentals (2nd Edition)
Voice over IP Fundamentals (2nd Edition)
A systematic approach to understanding the basics of voice over IP
- Understand the basics of enterprise and public telephony networking, IP networking, and how voice is transported over IP networks
- Learn the various caveats of converging voice and data networks
- Examine the basic VoIP signaling protocols (H.323, MGCP/H.248, SIP) and primary legacy voice signaling protocols (ISDN, C7/SS7)
- Explore how VoIP can run the same applications as the existing telephony system but in a more cost-efficient and scalable manner
- Delve into such VoIP topics as jitter, latency, packet loss, codecs, QoS tools, and security
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Voice over IP (VoIP) has become an important factor in network communications, promising lower operational costs, greater flexibility, and a variety of enhanced applications. To help you understand VoIP networks, Voice over IP Fundamentals provides a thorough introduction to the basics of VoIP.
Voice over IP Fundamentals explains how a basic IP telephony infrastructure is built and works today, major concepts concerning voice and data networking, and transmission of voice over data networks. You’ll learn how voice is signaled through legacy telephone networks, how IP signaling protocols are used to interoperate with current telephony systems, and how to ensure good voice quality using quality of service (QoS).
Even though Voice over IP Fundamentals is written for anyone seeking to understand how to use IP to transport voice, its target audience comprises both voice and data networking professionals. In the past, professionals working in voice and data networking did not have to understand each other’s roles. However, in this world of time-division multiplexing (TDM) and IP convergence, it is important to understand how these technologies work together. Voice over IP Fundamentals explains all the details so that voice experts can understand data networking and data experts can understand voice networking.
The second edition of this best-selling book includes new chapters on the importance of billing and mediation in a VoIP network, security, and the common types of threats inherent when packet voice environments, public switched telephone networks (PSTN), and VoIP interoperate. It also explains enterprise and service-provider applications and services.
The authors of Voice over IP Fundamentals–three packet-voice specialists at Cisco Systems–initiate their exploration of next-generation technologies for supporting conversations across large distances: the switched telephone network as implemented on large (intercontinental) and small (building and enterprise) scales. They then point out problems with the old way of doing things and illuminate the standards and regulatory conditions that have made Internet telephony attractive. Signaling System 7 (SS7) gets particularly insightful coverage, with ample graphical support for the clear, fact-rich, example-laden prose.The authors do a great service for readers by breaking packet telephony into its component technologies and explaining each one carefully. Coverage of the various protocols that enable voice over IP, particularly H.323 and Session Initiation Protocol (SIP), is simultaneously clear and deep. The same goes for media gateway protocols and various schemes for translating sounds into digital signals and back again, while retaining maximum clarity. There’s even some practical material; concluding chapters diagram Cisco router configurations for voice traffic and flesh out solutions with case studies.
You’ll like this book if you need to implement a voice over IP system and know more about IP than you do about traditional voice telecommunications. The patient and detailed explanations of traditional telephony concepts and voice over IP protocols will mesh nicely with your existing data communications knowledge, enabling you to make wise design and product decisions. –David Wall
Covered topics: The Public Switched Telephone Network (PSTN), signaling specifications (including Bell System, ISDN, and Signaling System 7), the basics of Internet Protocol (IP), modulation and compression of voice, Quality of Service (QoS), H.323, Session Initiation Protocol (SIP), and gateway protocols. Business considerations of Internet telephony are also addressed.
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Voice Over IP: Strategies for the Converged Network (with CD-ROM)
Voice Over IP: Strategies for the Converged Network (with CD-ROM)
Setting new standards for telephone communications, Voice Over IP is outpacing traditional switched circuit models. In this straight forward book, Miller explains both the benefits of Voice Over IP (simplified network management, reduced costs, and ease of integration) and its challenges, including unsettled regulatory issues and high reliability expectations. The CD-ROM provides Voice Over IP client software and IETF multimedia standards.
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Categories: VOIP Products Tags: CDROM, Converged, Network, over, Strategies, voice
VoIP Technologies: A Comprehensive Guide to Voice over Internet Protocol (VoIP)
VoIP Technologies: A Comprehensive Guide to Voice over Internet Protocol (VoIP)
Your complete guide to Voice over Internet Protocol
Looking for a reference on Voice over Internet Protocol (VoIP)? VoIP Technologies, your complete guide to Voice over Internet Protocol (VoIP), provides a comprehensive foundation of VoIP technology, as well as the knowledge necessary to successfully support any VoIP product.
Designed for those who have a working knowledge of data, this guide examines the major components of VoIP networks, the incorporation of VoIP into a data network, packaging and transmitting voice, maintaining voice quality, and addressing traffic issues. Many other topics are also discussed in this section, including VoIP standards, protocols, and configuring networks for VoIP. The second half of the guide focuses on designing and supporting complex VoIP solutions encountered in Wide and Local Area Networks (WAN and LAN).
This guide will also help to prepare you for the Technology Standards and Protocols for IP Telephony Solutions (920-803) and Technology Standards and Protocols for Converged Networks(920-804). Nortel Professional Certification exams.
Key Topics:
– Major components of the VoIP network
– Voice packetization
– Voice quality
– Bandwidth
– Quality of Service (QoS)
– Traffic convergence issues
– VoIP standardization and signaling protocols
– Managing VoIP networks
– Security in the VoIP environment
– Emergency services in the VoIP environment
– Technology standards and protocols for converged networks
– Network assessment
Today an understanding of VoIP is essential, because it allows network operators to lower operations costs and take advantage of advanced applications. The VoIP Technologies guide will provide you with the knowledge you need to understand VoIP, support a wide-variety of VoIP products, and prepare for Nortel Professional Certification exams.
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Categories: VOIP Products Tags: Comprehensive, Guide, internet, over, protocol, Technologies, voice, VOIP