IP-telephony service is popular among people these days. Internet telephony is a service, which transfers your words to the audience through the Internet. Voice is carried between the communicators through IP packets. Special hardware are needed for such phone facility.

With Internet telephony, you can call and also receive phone calls. This happens through a broadband connection. Using a Digital Terminal Adapter, you can use the Internet telephony service . You can connect several phones to your DTA box and use the phones at different locations. So, you can take your calls from various places of your house.

How does it work?
Internet telephony works by digitalizing the voice. It digitalizes the voice and sends it in packets to the destinations where the digitalized voice is again reconverted to the general voice. The digital form of voice can be compressed if necessary, converted and routed to other formats. These digital signals are supirior because they can tolerate noise. Internet telephony sends the packets of digital data through networks using TCP/IP protocol.

Advantages
Transportability - You can use your IP-telephony service at any place. The DTA gets a phone number, after which you can use the DTA with any broadband Internet connection. Just plug it and make and receive calls. You can use your DTA to call and receive calls around your country. In some cases the DTA works in other countries also.

Features - With Internet telephony, you get several other properties along with. The functionalities that you get are voice mail, 3-way calling, Caller ID, Call Forwarding, Call Waiting, and On-Line Account Management.

There is no cost to these functionalities. You can simply get these features by changing a software.

Reliability and Quality - Internet telephony is quality and reliability is generally good. But, sometimes you may face problems like need to reboot the DTA, delay, voice quality problems etc, which can be corrected simply by tuning the network.

In case of VoIP service, you do not have to pay for the time you use. But in case of PSTN and other call services, you need to pay for the time you use the service. Again, you can talk to many person at a time. You can transfer images, videos, texts with the people you talk with.

Both individual and businesses can use IP-telephony services. This will save a lot of money and time. But for that you should have the right VoIP phone service installed at the users place.

Jim Francisto
Internet telephony

Tags: DHCP, Computers, networking