| VOIP (Voice Over Internet Protocol)has various | | | | telephone headquarters. But VOIP especially |
| other names such as, Internet Telephony, | | | | household ones are connected to the broadband |
| Broadband Phone, IP Telephony, Broadband | | | | modem and also a number of equipments that |
| telephony. It is the process of routing voice | | | | run on electricity of the house. These are thus |
| conversations through the Internet or an IP based | | | | susceptible to danger incase of power failures or |
| network. | | | | lack of a generator. |
| The protocols that are used to the voice signals | | | | During the early stages, VOIP users had also |
| are known as Voice Over IP or VOIP. And the | | | | other equipments like PBX with it. These did not |
| companies that provide VOIP services are known | | | | rely on the power supplied by the telephone |
| as providers. Cost savings may be because of | | | | company. |
| the utilization of one network ffor carrying voice | | | | Though the PSTN (public switched telephone |
| and the data. Specially, when users already have a | | | | network) has evolved a lot over the years and is |
| less used network capacitywhich can carry VOIP | | | | also very reliable and trustworthy, it is important |
| at no extra cost. VOIP to VOIP calls may be free | | | | to note that most broadband networks are |
| but, VOIP to other networks have extra charges | | | | susceptible to outages that are intermittent. It is |
| that are paid by the VOIP user. | | | | also very important to note that the network |
| Telephony signals are carried as digital audio using | | | | technologies for the consumers like the cable also |
| a "speech data compression" technique by VOIP. | | | | the DSL are often not put through the same |
| Normally, telephones are kept connected to the | | | | levels of service of restoration as a PSTN or |
| main telephone company lines, in case of a power | | | | even a business technology like a T-1 connection |
| failure it is made to keep on working using | | | | would. |
| generators or batteries that are located in the | | | | |