However, VoIP inherently, it contains some instability factors not as good as traditional telephone network. PSTN lines make use of circuit switching technology: it stands for when conversation is on the line, the caller and the receiver have a special line, during this period no one can use this route.

VoIP calls through Internet; Internet uses packet-switched technology. So there’s no special route was retained between caller and receiver. All voice information was cut into small pieces (packets) after be digital, and then go through various routers, the message sent to the receiver. Different packet gets to receiver and re-organized, might go through various routes.

In addition, a variety of connections (including voice or information) could be sent by the same route. Information can be sent by the least congestion through the line, therefore VoIP is more efficient and cheaper. However, these packets may be sent to the wrong path or sending discarded, while each router might impact the voice quality during sending, even ruin the whole running of the technology. But some brand-new VoIP technology could decrease these inherent problems, such as ECsino Freecall, the technology is stringent encrypted, echo can be minimized or eliminated, the quality can be guaranteed, because they adopted a new protocol.

The additional demand of VoIP

Another traditional factor PSTN is more reliable, it is not enslaved to electricity. Although the company or home, if the use of a wireless phone, your telephone (PBX) may need electricity, but the telephone line itself does not need additional power to drive. So if your company or home is power cut, the fact is you could dial the telephone as usual.

However, VoIP needs electricity to operate, the blackout paralyzed the system. It also needs Internet connections, if the external line fault appears, those packets with conversation contents cannot reach the destination. Even those temporary "glitch" on broadband network may make the whole VoIP system has a big interruption all totally disconnection. Furthermore, computer viruses, network worms, computer invasion, these may make the network fault, and surely also makes the VoIP useless.

Now Ecsino will tell you how to conquer these hard hindrances by existing resource:

Strengthening the reliability of VoIP

If large enterprises use VoIP, perhaps all those problems could be avoided. However, how could a small company afford such expenditure? Fortunately, even if the cheaper VoIP service, there are some ways to let your company's VoIP network to be more stable. These methods include:

• Backup power system (UPS and generators) that can be sustained in the blackout of your VoIP and Internet power supply equipment.

• Spare Internet connection you can use some routers to connect two or more different telephone or broadband Internet connections, when one line fault while another one take over automatically.

• The special line for VoIP separate the “special Internet connection” for VoIP from other lines, uses special firewall to protect the VoIP system. You can set up a special firewall to block all the information except VoIP needs. This could help VoIP system to block the viruses or network attacks that are harmful to computer.
• Backup VoIP services if you need several VoIP systems,unnecessary to use the service from just one VoIP company although that is convenient and get a lower price, but the use of different enterprises can help you to solve the problem when one VoIP service is broken-down.


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