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VoIP is a way where the Internet Protocol networks are used to communicate transmission of voices. It is slightly different from the normal telephone line. It is also called broadband telephony. It can message a voice signal and is used for other applications.
The difference between a normal telephone and a VoIP phone is because the voice is transmitted from analog to digital not like the normal telephone where the signal is from analog to analog. Such phones require audio codecs to enable such a transmission.
Some VoIP Phones support narrowband audio, compressed speech and high fidelity stereo. The voice and costing in a public VoIP place depends not on call but on the number of megabytes. You can transmit it to poor digital quality and the resultant price could be less, whereas a high digital quality would be a bit expensive. This depends on which rates or types of services you choose.
To make the VoIP Call over a wireless broadband network there are mainly 2 types of supports, one of them is IEEE 802.11e and IEEE 802.1p which define 8 different stages of service including one dedicated to voice. Even the ITU-T G supports it but it`s not that popular now a days
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Today families use them but if there will be a power cut you can't call because the VoIP system tracks down internet. This is in fact one of the main disadvantages of such phone transmissions. The IP makes it difficult to restart again immediately as the router or cable modems need to restart as well.
Such phones and their system may be a bit complicated especially for old people to understand. A VoIP Phone can ask and identify itself with a SIP Registrar by using your username and password.
It`s not secure using and dialing in a VoIP phone if using an IP Sharing service and even if not, because if you dialed the person and the IP Marks, he can track you down and listen the conversation between you and someone. When considering this aspect, which is another great disadvantage of such a system several people think that it is better to use the traditional telephone lines.
There are more securing VoIP systems but to setup it takes a lot of time and it may be a bit complicated for some to manage to understand all the instructions too.
There are three types of securing VoIP system, technically names as ‘Voice over Secure IP VoSIP' , ‘Secure Voice over IP SVOIP and the best recommended secure one is ‘Secure Voice over Secure IP' which needs to be secured with a type of network first.
Caller ID service is supported among VoIP providers. Besides the majority of VoIP providers are even offering full Caller ID services with more details such as the name being shown on outgoing calls. However to set such a service may require additional fees.
The VoIP service is available in several countries and there are also other more advanced systems such as VoIP video phone, VoIP internet phone and other more specialized VoIP phone systems.
What is a VOIP phone?
VOIP stands for Voice Over Internet Protocol. The age of technology has brought forward a revolutionary method of communication called VOIP. Using VOIP, you can now make free or cheap international calls. A VOIP phone system requires the use of SIP or VOIP phones.
Many businesses are switching over to VOIP phone systems because of their ease of usage and also because of the economical price. A business VOIP phone system makes the cost of communication much more economical than the traditional phones.
Where to get VOIP phone services?
As with everything else these days, internet is the best platform to look for VOIP internet phone service providers. Vonage, Skype, AT&T, etc. provide VOIP phone services. Do a proper research if you want to get the best possible deal.
How to use VOIP phone system?
You will need to download and install the VOIP software to use the VOIP phone system; though you may not need to do that in some cases. You can then log onto your account and make the calls using a headset. Or if you have Hardware SIP phone, you can use it like a normal telephone.
What equipment is required for VOIP phone?
The equipment required can be different depending on how you want to use your VOIP system. If you want it linked to your computer, you can use normal headset with microphone; or you can connect VOIP USB phone. If you want to move about, you can get a wireless headset, or you can connect wireless handset with USB. You can even have a VOIP video phone.
You can also get a hardware SIP/VOIP phone which is directly connected to your network. This type looks like normal telephones.
There are lots of companies that provide the VOIP phone equipment. Linksys, Phillips, etc provides the equipment required for VOIP phone.
If you don't want to buy new equipment, you can still use your traditional telephone for VOIP by getting a VOIP adapter connected to it.
Benefits of VOIP Phone systems:
1. Reducing infrastructure and communication costs.
2. Flexibility of use. You can use it anywhere as long as you have stable and fast internet connection.
3. Multiple equipments usability – You can choose what type of equipment you want to use, be it earphones, headset, traditional telephone, wireless handset, etc.
Disadvantages of VOIP Phone Systems:
1. Dependent on mains power supply. The VOIP phones depend on availability of mains electricity, so they are susceptible to power failures.
2. Emergency calls cannot, sometimes, be routed to nearby call centers as the nature of IP makes it difficult to locate network users geographically.