SIP Trunking and More Sophisticated Call Network Design

Posted by on January 30, 2014 in Business Technology, Phone Systems, VoIP [ 1 Comment ]

SIP trunking for small businessesOn the vanguard of voice over Internet protocol or VOIP phone services, you’ll often find something called SIP trunking. This type of resource enables different kinds of networking for calls sent over digital channels.

SIP trunking and similar technologies are built on something called private exchange networks or PBX services. Private exchange networks or PBX became popular as companies migrated from the process of adding single land lines to offices, to a new process where one phone line was digitally split into many different lines within a building or department. This cut costs a great deal, and started the “digitalization” of voice that has come such a long way in today’s telecom industry.

Related: 5 Reasons Customers Hate Your Cheap Phone System

Now, SIP trunking is revolutionizing the telecom industry in a much broader way, by linking up users across different cities, and even different time zones, in new and interesting ways, by freeing up voice from its traditional network trajectories.

The Basics of SIP Trunking

Essentially, SIP trunking uses the power of the Internet to route calls in extremely complex ways. Where a traditional private branch exchange system routed a landline call into a department store network, SIP trunking can route a landline call onto the global World Wide Web and through various localized networks, until it reaches its eventual destination. One way to think about this is that SIP trunking creates a kind of “cloud” (which is how it is often represented in tutorials and flow charts) that sits on top of local voice protocols to ‘release’ voice into the IP network. Then, it’s routed precisely according to where the client wants it to go.

Features of SIP Trunking

With this in mind, here are some of the things that SIP trunking offers users:

  • A ‘seeking’ call structures – SIP trunking protocols can call a desk phone, cell phone, or other number in sequence until they reach a recipient wherever he or she might be.
  • Shared web browsing – this routing method can send files around networks to be shared by collaborators anywhere.
  • Area code services or ‘virtual numbers’ – companies can use a local number, but get that routed to somewhere else. The result is that you may be working overseas, but appear to be located right in the community of whoever is making the call.

In addition, there is the idea that with data and voice sent over the same network channels, SIP trunking can help to consolidate communications for a company and lower overall costs. Experts point to the idea of scalable bandwidth, where it’s possible to acquire more bandwidth for communications as needed, by “taking” from one allocation, either data or voice, and “giving” it to the other.

Related: Find the right phone system for your small business.

All of this is allowing companies to make big changes in how they serve customers, talk to suppliers, route products or organize and administrative service models (as shown in this TOSHIBA infographic). That’s not to mention tech support, executive level communications, and all kinds of other situations where businesses rely on telecom providers. The emergence of tools like SIP trunking are precision advances that make telecom offerings more valuable to business clients, and more powerful in applied business processes.


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