What is a SIP Trunk?

A SIP Trunking provider will supply you with a SIP Trunk.  SIP stands for Session  Initiation Protocol.  In general terms the SIP Trunk will connect your IP PBX to our SBC which stands for Session Border Controller.  Our SBC will connect you to the PSTN which stands for the Public Switched Telephone Network.  There is one very important difference in a SIP Trunk verses a traditional PRI/T1 Trunk to a phone system.  The SIP Trunk will transverse over the  Internet with the Voice over Internet Protocol (VoIP).  There is no physical connection to the IP PBX or soft switch in the traditional sense.  There are multiple methods of authentication of the two end points. IP Authentication is the most popular and Registration is second.  Additionally you can have a high availability and load balanced SIP Trunk with our DNSSRV HALB Trunks.  Contact us for details and no charge setup for this service.  

What do I need?

At any time when you are looking to switch to SIP Trunking there are some prerequisites to have in order.  Most important is to have your account open and ready process calls.  This is a fast and easy process that you should have ready in advance.  Verifying your ISP is providing enough bandwidth and additional capacity is available if you need it for your installation.  If this is your first time moving to SIP Trunks you may not need to purchase anything if your PBX (phone system) already supports IP Trunks.  If not you will need to invest in some IP Telephones or headsets at the very minimum.  If you would rather not invest in a physical PBX at your location consider utilizing a Cloud PBX to relieve the stress of installing and maintaining the PBX on premise.  This is helpful when your team works remotely, or if there is a power outage at your facility, the PBX will always be online.

Reducing the spend on telecommunications

Utilizing SIP Trunks with your phone system will minimize overall cost when done correctly.  If you have a large amount of long distance calls, per channel inbound phone lines or PRIs, maintenance fees for the PBX and limited use of technology then it is time to move forward with SIP Trunks.  With many SIP Trunks you only pay for what you use.  No channels, no locked in term lengths, or contracts.  If you are asked to sign a contract, keep searching.  At QuestBlue there is no requirement for a contract to get the rates you need to access the SIP Trunk network.  

Can I count on a SIP Trunk to be reliable and maintenance free?

Yes, you can count on SIP Trunks to be reliable and maintenance free. The best part of SIP Trunks is that they are typically configured with a level of redundancy that rivals traditional landline PRI’s or T1’s in comparison.  With all of the advancements in technology today on the Internet it is no wonder why Markets and Markets forecasts the global SIP Trunk services market to grow from USD 7.63 billion in 2018 to USD 12.7 billion in 2023 compounding at a CAGR of 10.7% between 2018 and 2023.  

QuestBlue has been providing SIP Trunks since 2007 with a team of expert connectivity specialists to meet your needs today, tomorrow and the next day.  Call today for a no risk SIP Trunk or register below for immediate access.


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