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SIP Trunking: Overview

How is SIP trunking setup?

When migrating to SIP trunking, it’s important that you know what is going on behind the scenes. Once you’ve selected a provider to move you from ISDN to SIP, there are several key stages along the way.

  1. Requirements Gathering – the most important part of your SIP implementation is capturing requirements. While SIP utilises the cloud, and can be modified at any time, getting your SIP deployment right first time becomes possible when requirements are captured following a standard process. Engage your Business Analyst or Project Manager early on in your process.
  2. Readying Your Network– your network manager should also be involved at the beginning of your SIP process. Ensuring latency, jitter and packet loss will not impact the performance of your SIP traffic is vital and much easier to resolve before staff are using a live service.
  3. Managing Bandwidth – your network manager should also plan to section off a private VLAN for your SIP traffic. Having a dedicated element of your network allows for the application of QoS and means your real time communications won’t have to fight other applications for bandwidth.
  4. Configuration and Testing – the time between choosing a SIP provider and your go live date is used to configure and test your specific SIP partition. Whilst SIP technology is tried and tested, it is important to test your dedicated partition. By completing a series of common calling scenarios, you have the peace of mind that your PBX is ready to use with your SIP trunks.
  5. Porting – Your go live date is the final step to your SIP implementation. Your numbers leave your existing ISDN trunks or PSTN lines and become live on your SIP trunks. Once your PBX is moved onto your SIP equipment, you are live on SIP!