Featured: AOKP Jelly Bean Build 4 released! Adds Samsung Galaxy S3, AT&T One X and more Read more at http://androidheadlines.com/2012/09/featured-aokp-jelly-bean-build-4-released-adds-samsung-galaxy-s3-att-one-x-and-more

Here we go! If you’re a crackflasher, it’s time to go ahead and flash the newest build of AOKP. With a new build comes a few new features, and a few new devices added to the list of supported for Jelly Bean builds. The new devices include Samsung Galaxy S3 – US Cellular (d2usc) AT&T HTC One X (evita) ASUS Transformer (tf101) Nice to see the original Transformer...

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Asterisk Application: IP PBX, Part - 3

Step 4: Configure Connections Now that Asterisk is installed and running you need to edit the system configuration files to implement connections to VoIP and PSTN services. Since this step is common to all applications (Asterisk doesn't do much good if it is not connected to anything) it contains information on creating both service connections (connections to VoIP or PSTN services) and endpoint connections (connections to phones or terminal adapters). Some applications require both service and endpoint connections (PBX, ACD) while others...

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Asterisk Application: IP PBX, Part - 2

Step 2: Select Your Computer Hardware Asterisk can run on virtually any modern computer, but when building a production telephony application server you should follow a few basic best-practice guidelines. Click the "More" link below to learn the basic requirements for a solid Asterisk server. Telephony systems are generally mission-critical components and therefore...

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Asterisk Application: IP PBX, Part - 1

sterisk was originally built as a PBX and today represents an astonishing 18% of global market for business telephone systems. The base feature set includes many of the most popular and powerful PBX functions. Tapping the power of Asterisk requires some knowledge of Linux, telephony, basic script programming and IP networking. For those who would rather point and...

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Asterisk Applications

Asterisk is named after the Unix/Linux wild-card character because, like the wild-card Asterisk can be virtually anything. This section covers a number of basic examples and provides recipes for creating some of the more common configurations. We are always looking for additional recipes, white papers and case studies, so please let us know if you have an example to post. IP PBXAsterisk is often referred to as "the open source PBX" and it's true that you can use Asterisk to build a PBX, in fact, we've done that work for you with our...

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How does FAX work in VOIP environments?

How does FAX work in VOIP environments? FAX was designed for analog networks, and does not travel well over a VOIP network. The reason for this is that FAX communication uses the signal in a different way to regular voice communication. When VOIP technologies digitize and compress analog voice communication it is optimized for VOICE and not for FAX. Subsequently, there are a number of things you need to take note of when you move to a VoIP Phone System. If you want to continue using your old fax machine, and you want to connect to your...

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10 reasons to switch to an IP PBX

10 reasons to switch to an IP PBX The benefits of replacing your old PBX with an IP PBX What is an IP PBX?An IP PBX is a complete telephony system that provides telephone calls over IP data networks. All conversations are sent as data packets over the network. The technology includes advanced communication features but also provides a significant dose of worry-free...

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What is T38 fax?

What is T38 fax? T38 is a protocol that describes how to send a fax over a computer data network. T38 is needed because fax data can not be sent over a computer data network in the same way as voice communication. See How does FAX work in VOIP environments? for more information about this. In essence, with T38 a fax is converted to an image, sent to the other T38...

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What is a STUN Server?

What is a STUN Server? A STUN (Simple Traversal of User Datagram Protocol [UDP] Through Network Address Translators [NATs]) server allows NAT clients (i.e. computers behind a firewall) to setup phone calls to a VOIP provider hosted outside of the local network. The STUN server allows clients to find out their public address, the type of NAT they are behind and the internet side port associated by the NAT with a particular local port. This information is used to set up UDP communication between the client and the VOIP provider and so...

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STUN

STUN is a standardized set of methods, including a network protocol, used in NAT traversal for applications of real-time voice, video, messaging, and other interactive IP communications. STUN is an acronym for Session Traversal Utilities for NAT, and is documented in RFC 5389.[1] RFC 5389 obsoletes the previous specification, entitled Simple Traversal of User Datagram Protocol...

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Everything About ENUM

How does ENUM affect the North American Numbering Plan (NANP)? ENUM does not change the NANP. In fact, it does not change telephony numbering or its administration in any way. ENUM uses existing numbers, and thus will not drain already scarce numbering resources. What are SRV and NAPTR Records? SRV and NAPTR are DNS Resource Records that contain information about resources, services and applications associated with a specific phone number. What happens if a user dials a number that cannot be resolved by DNS? Where a number cannot...

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effect of e164.arpa deployment on the global DNS

What is the effect of e164.arpa deployment on the global DNS system? This is going to require research, such as the effect of "wrong dials" on the root of e164. That is, caller specification of a wrong number can result in many additional queries to the e164.arpa root. Additional work will be necessary in advising ENUM applications about such things as the level of data caching necessary in order to relieve stress; suppress escalating of poorly-formed queries; misdials; or cache misses on the root structure. For telephony applications,...

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How will the e164.arpa domain be organized?

How will the e164.arpa domain be organized? One convenient way of doing this would be to delegate according to the ITU assigned country codes. It is important to understand, however, that delegation of a country code in DNS can occur at any digit or zone domain in DNS terms. For example, within the root e164.arpa, there would be: An NS listing for .1.e164.arpa - representing the country code (1) of the North American Numbering Plan (US, Canada, and several Caribbean countries). An NS listing for .4.4.e164.arpa - representing...

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How does ENUM work?

How does ENUM work? A telephone number, once entered, is translated into an Internet address. The following steps explain the process: The number entered is translated into a full qualified E.164 number. (To quote an example from earlier, the number 9777 1234 in Melbourne, Australia would be +61 3 9777 1234.) The number is reduced to digits only. (e.g., 61397771234) The digits are re-ordered back to front. (e.g., 43217779316) Dots are placed between each digit. (e.g., 4.3.2.1.7.7.7.9.3.1.6) The domain e164.arpa is added to the end. (e.g.,...

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What are the main benefits of ENUM for subscribers?

What are the main benefits of ENUM for subscribers? The primary benefit of ENUM is allowing Internet users the ability to communicate with other people via a range of services when the caller knows only the telephone number of that person or only has access to a telephone keypad. Internet services and resources can be accessed by end users with IP telephones, ordinary telephones connected to the Internet and other numeric-input, Internet-connected devices. ENUM allows end users to choose how they wish to be contacted, giving them greater...

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What does it mean to “provision” ENUM?

What does it mean to “provision” ENUM? At the heart of the ENUM service is an Internet domain name registry. Domain name registries have two core responsibilities: maintaining the authoritative database of domain name registrations, and publishing a "zone file" on the Internet that can be queried by any Internet user. The authoritative database has data about each domain name that is registered (who registered the name, contact information, the expiration date of the registration, etc.) The zone file contains information that will point...

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What is Private Infrastructure ENUM?

Private ENUM uses the concepts of creating a domain name from a telephone number (TN) and resolving it to a URI. It does not, however, use the domain e164.arpa (or any other domain with regulatory oversight). Private ENUM is used when there is a closed user group that wants to use ENUM to exchange IP traffic. An example of such a user group is a group of communications carriers that wants to exchange VoIP traffic. The user group that creates and uses the domain will also create the policies for the domain. There will be no regulatory...

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What is Public User ENUM?

With Public User ENUM (also called "End User ENUM"), the end user can provision his or her records in the ENUM registry in the public domain e164.arpa. In other words, the end user is the registrant for the ENUM domain name within the domain e164.arpa; the implication is that the end user has "opted in" to the ENUM service. "End User opt in" is generally considered a good policy if end user data is publicly available on the Internet. (The DNS is publicly available to any Internet user; it uses a domain available on the public Internet,...

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What is the ITU?

The International Telecommunications Union (ITU) is a global organization where governments and the private sector come together to coordinate global telecommunications networks and services. The ITU administers E.164 (described above) as the international country-level telephone numbering plan, the structure of which is described in the ITU document "E.164." Country codes are assigned by the ITU; however, designated telecommunications regulatory bodies within each country administer their own telephone numbers. (An example of a fully...

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Android 4.1, Jelly Bean

Android 4.1, Jelly Bean: The world's most popular platform gets even better Android 4.1, Jelly Bean, is the fastest and smoothest version of Android yet. Jelly Bean improves on the simplicity and beauty of Android 4.0, and introduces...

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The new Google experience on Android 4.1

The new Google experience on Android The best of Google just got better on Android. The search experience in Jelly Bean has a new look-and-feel, and has faster and more natural Voice Search. And Google Now brings you just the right information, before you even ask. ...

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Android Beam

Android Beam. With Android Beam on Jelly Bean you can now easily share your photos and videos with just a simple tap, in addition to sharing contacts, web pages, YouTube videos, directions, and apps. Just touch two NFC-enabled Android devices back-to-back, then tap to beam whatever's...

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Android 4.1: Better Accessibility

Accessibility. With Jelly Bean, blind users can use 'Gesture Mode' to reliably navigate the UI using touch and swipe gestures in combination with speech output. Jelly Bean also adds support for accessibility plugins to enable external Braille input and output devices...

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Android 4.1: A smarter keyboard

A smarter keyboard. Android's dictionaries are now more accurate, more relevant. The language model in Jelly Bean adapts over time, and the keyboard even guesses what the next word will be before you've started typing it. With improved text-to-speech capabilities, voice...

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Android 4.1: Seamlessly take and share photos.

Seamlessly take and share photos. Android 4.0, Ice Cream Sandwich, made snapping photos super fast; Jelly Bean brings that same speed to the next step: viewing. Just swipe over from camera to filmstrip view to instantly view the photos you just took, and quickly swipe away the ones ...

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Android 4.1, Jelly Bean: Android gets even better

Fast & smooth We put Android under a microscope, making everything feel fast, fluid, and smooth. With buttery graphics and silky transitions, moving between home screens and switching between apps is effortless, like turning pages in a book. More...

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Free SIP Providers

Having a free SIP account is a great way of making free calls on the Internet. You only need to choose a SIP provider that gives you a SIP account for free. There are many of these. Here is my list: 1. GetOnSip GetOnSip is a straight service offered by Junction Networks, the company behind OnSip.com, offering free SIP accounts in a very simple and easy registration. The registration fields stand right in your face as soon as you load the home page. You are not restricted on the amount of SIP accounts, and you get free SIP voice and...

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Installing and Configuring 3CXPhone for iPhone

Releases 3CX Product Releases VoIP How To Technical tips to run your VoIP PBX more efficiently Events 3CX Trainings and Webinars around the world ...

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Fixing Android Tablet Not Booting A Personal Experience With Chinese Tablet

IntroductionI am writing this tutorial as a personal experience with my chinese-made tablet pc. In general it is a 7" MID ePad Android Tablet powered by VIA 8650 800MHz CPU and Android 2.2 Froyo operating system. I believe the built in operating system is supplied by WonderMedia Technologies (WMT) as there are many WonderMedia Technologies applications pre-installed in...

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