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The most threatening attacks for small business VoIP provider and enterprises are those that can degrade the quality of voice, thus rendering the service useless. The simplest way to achieve voice quality degradation is through Denial of Service (DoS) and Distributed Denial of Service (DDoS) attacks.
VoIP communication brings another dimension into the security challenge by introducing both control (signaling) and content (voice) parallel channels which together form the Hosted VoIP PBX phone service. The dependence of these channels on one another drastically increases the risk that VoIP service can be damaged, as each one of the channels has its own vulnerabilities. It doesn’t matter which vulnerability is exploited because the attack renders the whole service useless.
Hosted voip phone system is revolutionizing how the world communicates, individuals, and businesses are embracing the capabilities and harnessing the power of the internet. Despite voice over IP being a great technological breakthrough, voip configuration, security is still a major concern, yet with the proper precautions it should not have to be.
Most users implementing VoIP these days are primarily concerned about voice quality, latency and interoperability. However we shouldn't overlook the security risks that can crop up when the voice and data worlds converge, users and analysts say.
VoIP Hackers can have racked up tens of thousands in charges
With Virtual PBX for small business, voice traffic is carried over a packet-switched data network via Internet Protocol. VoIP networks treat voice as another form of data but use sophisticated voice-compression algorithms to ensure optimal bandwidth utilization. As a result, VoIP networks are able to carry many more voice calls than traditional switched circuit networks. small business hosted voip also enables enhanced services such as unified communications.
Securing voice traffic on such networks isn't very different from securing any data traffic on an IP network. In a VoIP world, private branch exchanges are replaced by server-based IP PBXs running on Windows NT or a vendor’s proprietary operating system. Such call management boxes, which are used both for serving up hosted voip call center for business and for logging call information, are susceptible to virus attacks and hackers. Break-ins of these servers could result in the loss or compromise of potentially sensitive data. Consequently, it’s important that such business voip solutions is properly locked down, placed behind firewalls, patched against vulnerabilities and frequently monitored using intrusion-detection systems.
The University of Houston went one step further and made sure that its call manager and its entire VoIP network aren't directly accessible from the Internet. The school has put its IP PBXs in a different domain than its other servers and has limited administration access to the servers.
VoIP gateway technologies are also a potential weak point. When VoIP Phone Systems is used externally, gateway technologies convert data packets from the IP network into voice before sending them over a public switched telephone network. When VoIP is used internally, the gateways basically route packetized voice data between the source and the destination.
The concern here is that such gateways can be hacked into by malicious attackers in order to make free Voip broadband phone calls. The trick to protecting against this lies in having strict access-control lists and making sure the gateway is configured in such a fashion that only the people on this list are permitted to make and receive VoIP calls.
As with traditional telephony, eavesdropping is a concern for organizations using VoIP-and the consequences can be greater. Because voice travels in packets over the data network, hackers can use data-sniffing and other hacking tools to identify, modify, store and play back voice traffic traversing the network.
Ultimately, it’s important to remember that securing a VoIP infrastructure involves nothing that is drastically different from the measures corporations have always taken to protect their data. To sum up, there are a few simple things any corporation can take to protect their voip for call center and VoIP network, firstly separating and isolating voice traffic onto a virtual LAN is one way of mitigating the risk, of unauthorized access. Secondly using access lists that define exactly who is entitled to access the network will stamp out external threats. Finally using encryption, as you should with any sensitive data, adds another layer to your secure communication.
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