ALL ABOUT SIP 

Traditional phone calls go over phone lines, but with the rise of the internet, Voice Over IP communication systems give you much more functionality to receive a high volume of calls. This is called SIP (session initiated protocol) trunking.

There are a few security measures you should take to make your VoIP network less vulnerable to attacks. Some of the measures that you can take include
Use the Latest in Security Features
A number of coding technologies are used to encrypt the data communicated through a VoIP system. You should check with your service provider about the kind of security features that they offer.

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• It’s a fantastic choice for any business that has an international location.

• It offers the same sort of emergency usages and will even offer enhanced 911 dialing options.

• It offers very low cost calling.

• It’s much easier to scale than other options, making it very future proof.

IP white listing is the process which would allow your network to accept calls from only the trusted IP addresses. However, you would need to have a static IP address for all your destinations. If your business is located in the US and you cater to mainly US customers, then you can block large chunks of IP addresses from outside of the US.

SIP, it allows your provider to set up a proxy server (commonly referred to as a SIP proxy), which will provide the outgoing, incoming, and PBX calls for you. Everything is located off site and handled by a professional IT team or contractor through your provider, meaning it saves you a ton of time and money on the technical support side of the equation.

Spectrum Printing Supplies LLc  SIP Trunking for Asterisk & every SIP Enabled Telephone System. Over 500,000 DID’s available in 24,500 rate centers. You can activate and setup service in minutes.