About emergency -911
February 26, 2009
It has reached a stage were VoIP have become more accessible for users. A numbers of telecommunication benefits can be reaped using this technology. With the advanced technology people can use their broadband connections for different purposes as well as combine their telephony in one single network for convenience. Let it be any components such as voice, data, email, or web, everything in now made possible through this technology.
The real difference between how VoIP and other regular telephone is the way it operated. That is in VoIP, data is transmitted in the form of packets over the internet whereas in regular telephone it is done in the way of transmitting circuits- or electricity to create a connection between one telephone user and another. Here we can see how traditional switchboard operators had to make the right connection in order to make the right talkers communicate. It is now clear how the traditional telephone method got the name Circuit Switch Networks and VoIP technology the name Packet Switch.
The one problem VoIP faces is utilising the emergency 911 systems. According to the wireless communication and safety public act put forwarded in the year 1999, it was said that all telephone carriers and services will provide 911 services for all of its customers. Initially mobile phones found it very difficult to provide this 911 service but later on they succeeded in their venture.
This sounds as simple the call to 911 is routed to Public Safety Answering Point Dispatcher, where the identity of the caller like name and address will be displayed. More advanced technology has been evolved in Mobile phone carriers were the caller’s location is traced. E911 or Enhanced 911 is the wireless form of 911 and it includes display of caller’s location at the same time extending it to the surrounding range of 50-300 meters.
It is here were VoIP providers fail since it is a wireless connection or a router connected to your broadband High Speed Internet connection. This means that the physical address is not determined, but the IP address. Although some VoIP services can call 911 the Public Safety Answering Point Dispatcher does not displays the caller’s identification or address. This is what happens every time were the VoIP users reach 911 during emergency situations. The problem is very crucial yet cannot be rectified since VoIP is very different from that of how traditional telephone lines function.
The FCC makes clear that the VoIP providers are required to fill in a statement by the customers regarding the unavailability of 911 services in their VoIP service. Enhanced 911 services, just like that of cellular services have been initiated by some VoIP providers which does little help. This is not applicable for users of VoIP using their laptops as they will be identified by their IP address.
The only solution to this problem is to keep a landline phone for such uncertainties. Otherwise keep your mobile phone even if you use VoIP for your calling needs through your laptop, or if you use a VoWiFi phone. All these measures will come in handy when calling 911.
Be aware that the dispatcher will not have any information regarding the caller and thus provide them with necessary details while making 911 phone calls from your VoIP.
Linksys SPA941 VoIP Phone
February 23, 2009
In the modern era technology plays a major role for inventing the well equipped and highly useful products in less cost. VoIP phones are invented in order to get the phone service in a less costs for the internet users.
Linksys SPA941 VoIP Phone has an exceptional position among its contemporaries. This is a fully featured two or four line business class IP phone and it is upgradable to 4 lines with the latest version of firmware.
Fundamental Features
The VoIP protocol of this device is SIP v2. The network protocols supported are TCP, UDP, ICMP, ARP, DNS and SNMP. The voice codecs are G.711, G.723.1, and G.729a. The quality of the services are IEEE 802.1Q (VLAN) and has a differentiated service. One Ethernet 10Base-T is the network port of this device.
DHCP is the IP address assignment of this device. The voice feature of this device is voice activity detection (VAD). The included cables are network cable with 1.8 m length and headset cord with 56 cm length.
This product has an LCD display and it is monochrome. The display resolution is 128 x 64 pixels. This product has full duplex speaker phone and has caller ID facility a well. You will also get voice mail with this device. This product has an automatic redial option. The additional features of this device are on-hook dialling, music on hold and built-in web server.
The dimensions of this Linksys SPA941 VoIP Instrument are 19.5 cm x 18 cm x 16 cm and it weighs only 1 kg. Keypad is the dialler type and it is located at the base of this device. The included buttons of this device are speakerphone button, headset button, flash button and auto redial button. Conference call capability is the other facility of this device.
You can control the volume and the ringer of this product. The other added features of this device are voice message waiting indicator, call timer, call hold, call waiting, call transfer and call forwarding. This phone has the capacity to store 100 names and numbers in its memory.
The connections of this phone are 1 x headset jack and sub-mini-phone of 2.5mm. The power source of this product is external power adaptor. The handset of this device is very handy and with solid feel. You can connect this phone directly to an internet telephone service provider or to an IP PBX.
VoIP System - Route Emergency Calls To A Non-Emergency Phone Line
February 22, 2009
The VoIP facility is getting popular with every passing day making communication between people at the other end of the globe just as simple and effortless. VoIP is helping to bring together people who are separated by distance by its various user friendly features and facilities. Gone are the days when you had to wait for long hours to get connected through ISD calls to someone living abroad! With VoIP facility your connection is just with click of buttons and instantly you can start talking without even bothering to look at the meter to know how long you have spoken and how much you have to pay.
The VoIP facility is simply based on the unique method of communicating from your PC to the PC of your loved ones settled anywhere in the world as long as they can also get connected through the internet. This system is anytime simpler much more luxurious than the traditional phone line communication. With the VoIP system gaining momentum, the providers are coming out with various packages promising to provide the user with superior audio quality, low call cost thereby ensuring greater success in business and communication.
With greater advantages, VoIP users definitely have an edge over the traditional phone users for their routine business and communication. All you need is your regular phone connection, internet broadband connection and an adapter. With these things available you have to just subscribe to any VoIP network provider and the rest follows. The offers and packages such as free calls, free messages and free instant messaging just to name a few comes along with the network from the VoIP provider from whom you have taken the connection.
As already discussed, VoIP makes communication possible, even to the most distant and remote of places at significantly low cost. The calling features offered by VoIP call termination services are also significant with the facility to connect inter-offices for business VoIP systems. The calls made are being sent in a packaged form to distant clients and that is why you can make international calls at local rates. Since this is a digital system, it makes use of high end technologies to transfer calls from one place to another with ease.
The IP PBX serves as gateway for the passage of the voice signal during the communication process from one end to the other. It is completely reliable and efficient in transferring files, messages to people across the globe. It provides you with various options such as video calling, 3 way calling, call forwarding, call waiting, return call, caller ID, call transfer, repeat dial and others.
The VoIP call termination service is thus viewed upon as a unique method of making PC to PC phone calls where people can see each other, share files with them and also send messages. With the technology advancing at such a fast pace, this facility is no longer limited to PC alone. You can also access it your mobile phones or your traditional phones by means of an adapter.
Aastra 9112I VoIP Phone
February 21, 2009
The VoIP facility has redefined communication among people making it easier and simpler. You can now
talk for long hours with anyone across the globe without having to worry about the telephone bill or connectivity problems.
The Aastra 9112I VoIP telephone is a compact and a stylishly designed instrument that will deliver the VoIP facility efficiently. It provides you with a whole set of features and functions that will make your life easier at home or office. It provides for enhanced call management through large storage for personal directory, callers log and redial list. It provides tight integration support for multiple IP telephony systems including BroadWorks, Nortel, Sylantro and Asterisk SIP. It also consists of an enhanced Bus Lamp Field (BLF) that allows viewing of phone status such as whether the phone is onhook, offhook, ringing, connected on the display screen. It goes a step further providing presence information such as out to lunch, busy, DND and more.
The reliable Aastra 9112I VoIP Equipment provides you with remarkable audio quality. It has a speaker phone that delivers excellent voice quality. It provides multiple Protocol support that enables working with a wide variety of IP telephony systems. You can also protect your investments as it allows the firmware upgrades to be installed in the field as and when the standards develop and protocols evolve. It consists of a single 10/100 Ethernet port.
A universal wall adapter with power is supplied along with the instrument. This instrument is hearing aid compatible. It is also compatible with Modular RJ19 connector and other amplified business headsets thereby allowing headsets connections.
The features keys available on the instrument include 7 programmable keys and 4 navigational keys. It provides you with a 3 line backlit display for your information. It allows for call forwarding, call transfer, call waiting, caller and calling line information, callers log, conference, redial list and live dial pad or pre-dial support. It also provides you with caller ID facility and secrecy capability.
You can synchronize date and time using the SNTP facility. It provides you with user programmable interactive services. The sample application available with this phone includes visual voicemail and directory services.
The protocols and features supported on this phone include XML, SIP, H.323, MGCP and Open XML standard interface for screen based applications. It also supports G.711 m/A and G.729A configuration. It provides GUI support, automatic call agent address on some systems and single line configurable varies by IP PBX or soft switch solution.
It meets the compliant standards of FCC Part 15, Subpart B, EN55024 and EN55022, Class B, AS/NZS CISPR 22, TIA 968-A and CS-03, Issue 8, AS/ACIF S004, CSA 60950-1 NRTL/C, TS001 AS/NZS3260 and EN60950 for safety and emissions.
The Aastra VoIP Phone is very compact and can be easily placed anywhere on your table. It measures 19.1 cm in width, 19.1 cm in length and 8.9 cm in height. It weighs 1.1 kg.
VoIP Software - Versatility And Robustness Hand-in-Hand
February 20, 2009
The VoIP comes as a blessing in disguise for all those bitten by the communication expenditure bug. This facility provides a great relief on you budgets as it cheaper and affordable.
Gone are days when you had to spend heavily on your telephone bill to call your loved ones abroad. Now all you have to do is just connect your PC through a high speed internet connection to the PC of the person you want to call and then you can chat away as long as you want to without looking at the meter constantly.
First of all you need to down load the software for the VoIP to avail its functionality benefits. This software is highly versatile that is responsible for running the VoIP architecture efficiently and ensuring clarity in voice during communication. It also takes care of tasks such as user interface management, billing, call processing and network management with precision and accuracy to facilitate hassle free VoIP telephony.
The user interface is one of the significant utility that makes a VoIP possible. It acts as a mediator between the user and the VoIP and compresses voice data, encryption and echo cancellation.
The next important in the line of software for an effective VoIP is the call administration software or the consoles that manage the state of the calls and their distribution. This software is not only run by the H.323 session initiation protocol but the bandwidth and the call network monitoring is managed by it. It incorporates Real time protocol (RTP) to maintain the quality and efficiency in the services.
Coming to the call processing software that makes the VoIP available to the world, it is also known as the ‘soft switch’, a database program that translates the validated phone number into unique IP address. The duty of this software is to map the destination of the call and route it through least congested paths thereby ensuring easy access. It is also responsible for connecting both the source and the destination devices.
Versatility of the software used is equally important as its robustness. The software must assure high efficiency and reliability. The billing service is practically the most important software. Voicemail services whose function is to synthesise voice for mails are also available. The VoIP software also manages the IP soft phones that directly connect the VoIP provider through computer.
Hence the software makes up for a very important and integral part of this facility.
