Asterisk-Addons 1.6.1.0 Now Available
April 29, 2009
The Asterisk Development Team is pleased to announce the release of Asterisk-Addons 1.6.1.0. Asterisk-Addons 1.6.1.0 is available for immediate download at http://downloads.digium.com/pub/asterisk/
This release maintains compatibilty of the Asterisk-Addons package with the Asterisk 1.6.1 series of releases, since it is possible for API changes to occur between 1.6.x releases. Additionally, several minor issues have been resolved.
For a summary of the changes in this release, please see the release summary:
http://svn.digium.com/svn/asterisk-addons/tags/1.6.1.0/asterisk-addons-1.6.1.0-summary.txt
For a full list of changes in this release, please see the ChangeLog:
http://svn.digium.com/svn/asterisk-addons/tags/1.6.1.0/ChangeLog
For those upgrading from previous versions, it is advisable to review the UPGRADE.txt file:
http://svn.digium.com/svn/asterisk-addons/tags/1.6.1.0/UPGRADE.txt
Thank you for your continued support of Asterisk!
Asterisk-Addons 1.4.8 Now Available
April 29, 2009
The Asterisk Development Team is pleased to announce the release of Asterisk-Addons 1.4.8. Asterisk-Addons 1.4.8 is available for immediate download at http://downloads.digium.com/pub/asterisk/
This is a minor release with a single fix for chan_ooh323c from issue #14116, which could cause a crash within the channel driver. If you are not using chan_ooh323c, there is no need to upgrade.
For a full list of changes in this release, please see the ChangeLog:
http://svn.digium.com/svn/asterisk-addons/tags/1.4.8/ChangeLog
Thank you for your continued support of Asterisk!
Asterisk 1.6.1.0 Now Available
April 29, 2009
The Asterisk Development Team is pleased to announce the release of Asterisk 1.6.1.0. Asterisk 1.6.1.0 is available for immediate download at http://downloads.digium.com/pub/asterisk/
This is the first release in the 1.6.1 branch, which has additional features added since 1.6.0. Please see the CHANGES file for more information about the additional functionality
For those upgrading from previous versions of Asterisk, it is advisable to review the UPGRADE.txt file:
http://svn.digium.com/svn/asterisk/tags/1.6.1.0/UPGRADE.txt
Some highlights about changes in this release:
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* It is now possible to specify a pattern match as a hint. Once a phone subscribes to something that matches the pattern a hint will be created using the contents and variables evaluated.
* IAX2 encryption support has been improved to support periodic key rotation within a call for enhanced security. The option "keyrotate" has been provided to disable this functionality to preserve backwards compatibility with older versions of IAX2 that do not support key rotation.
* res_odbc no longer has a limit of 1023 total possible unshared connections, as some people were running into this limit. This limit has been increased to 4.2 billion.
* Several (ODBC, Postgres, MySQL, SQLite) realtime drivers have been given adaptive capabilities. What this means in practical terms is that if your realtime table lacks critical fields, Asterisk will now emit warnings to that effect. Also, some of the realtime drivers have the ability (if configured) to automatically add those columns to the table with the correct type and length.
* Config file variables may now be appended to, by using the '+=' append operator. This is most helpful when working with long SQL queries in func_odbc.conf, as the queries no longer need to be specified on a single line.
* Many many other changes that are too numerous to list here. See:
http://svn.digium.com/svn/asterisk/tags/1.6.1.0/CHANGES
For a summary of the changes in this release, please see the release summary:
http://svn.digium.com/svn/asterisk/tags/1.6.1.0/asterisk-1.6.1.0-summary.txt
For a full list of changes in this release, please see the ChangeLog:
http://svn.digium.com/svn/asterisk/tags/1.6.1.0/ChangeLog
The following list of issues were resolved with the participation of the community, and this release would not have been possible without your help!
* Allow disconnect feature before a call is bridged
- Closes issue #11583. Submitted by sobomax. Tested and additional coding by sobomax, dvossel, murf.
* Update app_fax to work with spandsp-0.0.6
- Closes issue #13688. Reported by and patched by irroot.
* chan_h323 with H323Plus for TRUNK (SVN rev. 89183)
- Closes issue #11261. Reported by vhatz. Patched by jthurman.
* Wrong usage of sscanf with use of uninitialized variable caused accidental parsing of RTP/SAVP
- Closes issue #14000. Reported and patched by folke.
* Realtime peers are never qualified after 'sip reload'
- Closes issue #14196. Reported, tested, and patched by pdf.
Thank you for your continued support of Asterisk!
What is Voice Over Internet Protocol?
April 26, 2009
It delivers these bits and bytes to a specified internet address rather than a telephone number. It's easier to think of it as being like sending e-mail from one computer to another, but in real time and using voice instead of text. The technology that most likely runs your existing switchboard and phones is a traditional public switched telephone network (PSTN) service. VoIP's advantage over this is its ability to combine several services, such as voice mail, video, e-mail and conferencing. This instantly increases your ability to collaborate and can result in higher productivity.
You've probably used VoIP services without even realizing it. Every time you've used an instant messenger program to initiate a voice conversation or sent a voice mail, you've used this cutting-edge technology.
But how can this benefit your company? Well, for starters, it's likely to lead to lower phone bills. And it could reduce the need to travel, too. If you have branch offices, they can be connected either through a dedicated lease line or virtual private network (VPN). Since all calls routed over the internet, irrespective of the network, are free, this leads to significant savings over existing voice services for inter-company communications and makes use of any under-utilised network capacity that you're paying for.
VoIP technology is not new, but some work may be needed before it achieves the reliability of traditional phone systems. Dealing with lots of hardware and service providers as well as handling technology considerations like the integration of VoIP networks with traditional phone systems may sound intimidating. However, with a little help, you will realize that the products on offer are easy to use.
Key requirements in the move to VoIP remain lower costs, abundance of choices, bundled services, high quality, reliability and availability. Most of these issues have already been addressed by VoIP service providers. And if you let them help you implement VoIP services correctly, it can lead to significant savings.
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Voice Over Ip Telephony Comes of Age
April 26, 2009
With the advent of widespread broadband Internet connections, consumers are discovering what businesses have known for a while. Voice over IP telephony, or VoIP as it is known, can be a viable and cost effective alternative to the Plain Old Telephone System (POTS). As VoIP upstarts are popping up everywhere, most notably Vonage, Packet8 and Skype, even the big Internet Service Providers are offering voice over IP packages to their residential subscribers
Such features as caller ID, call forwarding, automatic redial, and even 3-way calling are standard on most VoIP packages, whereas many phone companies consider them add on's and will charge you extra. But the real kicker is, if it is right for you and you pick the right Voice over IP solution, you should be able to reduce your phone bill by half or more.
How Does Voice over IP Work?
IP Telephony is a packet switching technology, as opposed to circuit switching as used by the PSTN (Public Switched Telephone Network). The PSTN method uses copper wires to physically connect one caller to another through a series of circuit switches, as illustrated by the switchboard operators of old.
In voice over IP, the analog voice is converted into digital packets that are routed through the internet, and in the case of one of the parties being on a PSTN connection, the packets are routed to the nearest local switching station and placed back on the PSTN. If both persons are using VoIP, then there is no reason to use the PSTN, and the entire conversation takes place over the Internet.
Needless to say, this is much more cost effective than using land lines for the entire distance. If a caller in New York uses VoIP to call a PSTN number in Seattle, the call doesn't leave the internet until it reaches the switching station in Seattle, making it for all practical purposes, a local call.
The Drawbacks of Voice over IP Telephony
There are some points that one should seriously consider when thinking about dumping the POTS. VoIP generally requires a Broadband Internet connection, which in turn requires power. If a power outage should occur, you have no telephone service. Battery backups could solve this problem, but not on a long term basis. Internet Service Providers (ISP's) also have a tendency to go down occasionally, though they are getting better all the time. Calls can be forwarded to your cell phone if your power is out, but in real disaster situation, even cell phones are not a perfect backup, as seen by Hurricane Katrina. Faxing over an IP network has proven to be problematic. Fax machines scan a document and convert the data into sounds, which don't travel well over the internet. In IP telephony, much progress has been made on a standard called T.38, whose mission is to convert the fax sound into sendable data. Another option is iFax, the T.37 standard that sends faxes as an email attachment or a remote printout using the Internet Printing Protocol. Today, separate Fax lines can be added by most VoIP providers for an extra charge.
Emergency services such as 911 are also an issue with IP telephony. It is the nature of the Internet that tying a particular node to a geographic location is quite difficult, and street addresses are not easily routed to a nearby call center. In the U.S., the FCC has mandated that VoIP providers implement Enhanced 911 (E911). Providers are making progress by encouraging their customers to register a street address to their phone number, enabling them to route emergency calls to a nearby call center.
Voice over IP and Broadband Connections
While a broadband connection is not absolutely necessary, it is what makes VoIP shine. Many households are turning to DSL or cable modems for their internet connections, and wireless broadband WiFi hotspots are popping up everywhere.
The problem with DSL is that it is provided by telephone companies which for the most part require you to have a landline, pretty much defeating the purpose. Some regional Telco's are starting to unbundle their DSL services by offering "naked DSL", an Internet connection without the analog line on the local loop. When you think about it, there really doesn't seem to be much motivation for the Telco's to promote VoIP, as it would effectively be like cutting their revenues in half.
If your household has cable television, you more than likely can get broadband access through a cable modem. Most cable providers charge around $50 a month for broadband internet access, and for those who utilize the Internet often, a high speed internet connection is well worth the price. Some cable IPS's offer residential Voice over IP for $40-$50 a month. Through the pure play VoIP companies like Vonage or Packet8, you can get VoIP for around $15-$25 a month, potentially eliminating the need for a land line at all.
Wireless networks also work great for VoIP, and are especially convenient if you travel a lot. Hotspots all over the world allow you to call anywhere using a WiFi VoIP phone. Internet phones come in all shapes and sizes with all kinds of bells and whistles. From a full business desk phone from Cisco, to phones indistinguishable from cell phones, even regular cell phones that are VoIP capable new products and technologies are coming out every day to get you better connected for less.
Voice over IP telephony has come of age. If you have access to a broadband Internet connection, you could conceivably cut your phone bill by half or more, never pay long distance charges in the U.S. and Canada, and pay way less for International calls as low as 3 cents per minute. Sound quality is usually as good as a cell phone connection. To test you current broadband connection, visit http://www.TestYourVoip.com and download the java applet. In about 20 seconds they will show you in detail how your VoIP phone call would fare to and from national and international destinations. Once you know if your connection can sustain the extra traffic, it's just a matter of finding a reliable Voice over IP telephony service provider.
Ultimate Guide To Baby Gender Selection
Can VOIP Technology-Voice Over Internet Protocol Globalize Your Home Business?
April 22, 2009
As you work your business on a daily basis, you are probably wondering how yo can expand the reach of your business. Usually this means you need to build up the infrastructure of your business and you will need to increase your marketing efforts. One of services we will recommend you look at is the unlikely voice over internet protocol or VOIP Technology.
To increase your business expansion capabilities one of the first things you probably have completed is to determine how your product or service meets the needs of a particular market. That market being in a defined area means the people and or prospective customers have a particular set of biases and familiar ways of doing business. This usually means that you have to do the first rule of sales which is meeting the customer on familiar terms.
One of the ways to establish a presence in a remote area is creating a local presence in your targeted area. This would mean acquiring physical office space and a local address, etc. However In this day of the internet moving real people and equipment may not make sense. As this type of office expansion move can be expensive or impossible to do for the solo business owner, a business owner needs to look at the latest VOIP technology called voice over internet protocol or VOIP.
.Available as voice over internet protocol or voice over cable generically termed broadband phone service; VOIP services are dramatically different from the traditional services of the past. A detailed explanation of VOIP is more then we can cover here but one of the primary advantages of using VoIP services is that you can order up additional services without needing a person deployed to install service. A second advantage is that you also don't need regulatory body or local VOIP service provider to approve you entry into this remote area of your goals.
With VOIP you can obtain a local telephone number in almost any where because this type of mobility is allowed to occur no matter where you are because the VoIP adapter that you receive from the service provider is specially coded with your VoIP phone number. Alternately you cn also get a software driven type VOIP service right from your computer. Regardless of the type of service you get, this now means no matter where you go, your number goes with you.
Establishing business offices at multiple locations - VoIP Virtual Numbers allow multiple inbound telephone access numbers in different cities. With this feature, it is possible to establish your business in multiple locations by creating a "Virtual Presence" using virtual numbers.
These virtual numbers can be routed to any number that you specify. If you live in Chicago, you can have access numbers in New York, Houston and San Francisco all routing through to your number in Chicago.
With this feature, business addresses can be established in different cities and even countries. You can set up these virtual numbers based on the locations from where you expect to receive many phone calls.
Besides enhancing the image of your business, customers get the benefit of calling a local number which is less costly for them. You get to expand your business without physically entering a remote market and you do it at a low cost.
As you can see this is how to globalize a business and as you can see with VOIP software there are many possibilities when you take a different look at what seems to be a regular IOVC VOIP technology component. But as demonstrated, voice over internet protocol has many additional benefits including helping you globalize your business.
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Differences between SIP and IAX for your Asterisk Installations
April 22, 2009
Today VoipSupply is running a contest about IAX vs SIP because of a new phone launch that supports IAX (finally!).
So, we thought we'd go over a couple of the differences of SIP and IAX and why IAX may suit your needs better.
IAX:
- Only one port needed on firewall
- Works much easier with NAT environments
- Smaller network footprint
- Out of Band DTMF for ease of use
- Created by the Asterisk Team (well supported)
SIP:
- Standard Protocol
- Works with not only Asterisk
- Great if you're not NATing
- Well Supported
- Higher Bandwidth usage than IAX
- Can be a problem with DTMF sometimes
Those are pretty much the bare facts about SIP vs IAX. We're not out to start a war between which one is better, obviously both have their benefits and disadvantages. For us, we like using IAX with any remote office for trunking purposes or for external lines behind firewalls we don't control. For inside the office, we opt for SIP as much nicer phones are available with this protocol.
Which do you prefer?
Don't forget to check out the contest from VOIPSUPPLY while you're at it.






