| Traditional public switch telephony network along with | | | | routers etc. VoIP resellers do not have to make any |
| PBX has taken a back seat with the advent of VoIP | | | | substantial capital investment for venturing into the |
| telephony services. It is not a hidden fact that the | | | | voice over IP telephony field. The entire technical part |
| popularity and dependency on VoIP services has been | | | | of VoIP services is handled by the providers or |
| increasing over a period of time, and it does not seem | | | | wholesalers. |
| like this is going to change anytime soon. In fact, | | | | Functionality of VoIP: |
| several researchers of the telecommunication field | | | | 1. It is the most cost-effective way of making local, |
| have pointed out, and rightly so, that in the near future, | | | | long distance and international calls even while getting |
| the entire communication structure would come to rely | | | | the same voice quality as with the traditional mode of |
| upon Voice over IP services. It is thus essential to | | | | calling. |
| understand how this technology works, in what way | | | | 2. It helps in unifying the communication structure of an |
| can residentials and businesses benefit from it and | | | | organization, thereby increasing the productivity along |
| what are its disadvantages, if any. | | | | with it. |
| How VoIP Works? | | | | 3. It is mobile. One can take it anywhere along with |
| Voice over Internet Protocol is a mode of transmitting | | | | them and still be able to make calls at the same |
| voice over the Internet by converting it into small digital | | | | reduced rates. Not only this, but all the calls will |
| IP packets from analog signals, so that it could be | | | | automatically be routed directly to your VoIP number, |
| understood by the computer. The voice is | | | | irrespective of the network from where you are |
| decompressed and reconverted into analog signals | | | | connected to the Internet. |
| before it finally reaches the receiver. | | | | 4. VoIP service providers offer other service features |
| Equipments That Are Needed For Utilizing VoIP | | | | free of cost which PSTN providers normally charge |
| Solution: | | | | for. For instance, call forwarding and call waiting. They |
| A residential client would only need a computer or a | | | | increase your businesses functionality. |
| SIP phone, a sound card, headsets, and an Internet | | | | 5. It is easy to integrate your existing services with |
| connection in order to make VoIP calls. From the | | | | business VoIP. |
| back-end side, all the technical equipments that are | | | | The only negative aspect which had hampered the |
| required for utilizing VoIP services are owned and | | | | growth of VoIP services the time it was invented is its |
| maintained by the VoIP service providers. Wholesalers | | | | poor voice quality. However, with time, several |
| of VoIP procure VoIP minutes from service providers | | | | improvements have been made as a result of which |
| in bulk and then further sell them to resellers. VoIP | | | | VoIP solution gives us the same voice quality as with |
| Wholesale carrier service providers have their own | | | | any traditional PSTN service. |
| network consisting of equipments like gateways, | | | | |