What Is SIP Trunking – The Ultimate Guide


SIP stands for Session Initiation Protocol. SIP trunking is nothing but a service that uses the protocol to provision voice over connectivity between the public switched telephone network (PSTN) and the on-premises phone system. This technology is also known as VoIP connectivity.  Check out here a complete guide and know all the information about SIP trunking.
Overview
SIP trunking enables the end point’s Phone Exchange System to receive and make calls via the internet. SIP trunk has the ability to manage video, voice and messaging application systems. If you want to know what is SIP trunking in details, you also have to understand voice over Internet Protocol (VoIP) technology.

This methodology (and group of technologies) is also known as IP telephony. By using VoIP service, you will be able to deliver voice communications and conduct multimedia sessions over Internet Protocol networks. SIP trunking can also be considered as a streaming media service, which is based on the Session Initiation Protocol.

How It Works
If you want to know how SIP trunking works, you have to understand its architecture. The architectures of SIP trunking provide a session border controller which is also known as SBC that mediate the connection between the on-premises phone system and SIP trunk.

SBCs offer a central point that manages security through call routing policy. It also provides numbering plans and transcoding of voice codecs. It also offers some other services that include the followings:

1.      Encryption of voice calls
2.      Failover to backup trunks
3.      It can interconnect with cellular networks so that a call placed to a cell phone can also ring on the desktop phone
4.      It also has the ability to provision trunks through a web-based interface
5.      It also provides virtual inbound phone number services
6.      SIP trunking also has the ability to route calls to multiple locations
7.      Comprehensive protection against toll fraud
8.      It also offers DoS (denial-of-service) protection
9.      Usage and performance reporting

Benefits
Businesses will get plenty of benefits if they opt for SIP trunking system. It allows them to manage different IT operations from one IP-based network. So overall, it is fair to conclude that if you use SIP trunking system, then you don’t have to use different networks for voice and data. By using a single network, you will be able to address all of your communicating needs.  It also helps businesses to save cost.

Hope the readers have got some useful insights on what is SIP trunking. However, if you still have any question about this or any other technology mentioned in this post, then feel free to ask your question by using the comment box below.

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