SIP Trunking - Introduction:
VoIP has lot of features and its usage is increasing day by day. The phone calls on VoIP are different from the phone calls that are common circuit-switched. To make and end up the phone calls, there are different protocols used by VoIP.
The protocol used by VoIP is a necessary and main task to make and terminate calls. To do these basic tasks communication between VoIP and Public Switched Telephone Network (PSTN).
In the case when the VoIP system is for internal use only then there is no need for SIP Trunking. In this PSTN is not the factor. VoIP system has replaced the traditional telephony, And now the traditional telephony is used for only internal calls. SIP Trunking, you may say, a bridge or an adapter between PSTN and VoIP, All the VoIP phone calls go outside through PSTN.
SIP (Session Initiation Protocol) actually started when the technology of IP PBX was introduced. SIP is itself a protocol and this protocol acts as an interface. PBX is a traditional technology having very limited functionalities. Instead VoIP has grown up so rapidly that it wonders everyone.
SIP, a protocol, an interface, preferably used with IP PBX in the case when the IAD (Integrated Access Device) is incorporated. There should be a firewall for protection. The attachment of firewall should be done with PBX. This firewall should be though this protocol, called SIP.
The businesses are connected through VoIP service provider to internet and on the other hand the VoIP also needs an interface so the businesses whatever the small or big stay connected to their clients.
The interface then is used when the connection between VoIP service provider and PSTN carried on. It seems to be more complex but it is not much complex because of latest technologies the complexity of management and organizations has been minimized.
The overall outcome for using this type of technology is to gain full access of lot of functionalities behind. With this, you can make calls anywhere, anytime to your loved ones. If you are running a business, you may be benefited by staying in touch with you clients.
Primarily, different types of techniques were used to make a proper system to make up the voice calls, video calls on through internet. IN this regard, several types of protocols were used but every protocol has some sort of disadvantages. A lot of efforts are made to overcome the disadvantages and at the end the scientists made a system having interface with minimum disadvantages.
Actually, SIP system was made for those who cannot afford costs. It is used for the small businesses. It is inexpensive and the other benefit of this interface is: It has more efficient. It is not much complex and can be handled easily. Like other interfaces, it doesn’t require any costly hardware.
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