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SIP Trunking: Overview

Things you need to know about SIP trunking

Once the benefits of SIP trunking have hit home and you’ve decided that SIP is for you, there are some things you need to know before you make the leap.

  1. Multiple methods of ROI – when compiling your business case, check for every possible way that you can received a return on SIP trunking. Immediate benefits include monthly rental charges and free calling between sites. It is also important to think long term. As your business grows – temporarily or permanently – you no longer need to factor in installation and engineer costs.
  2. Network impact – SIP is often deployed over your network to avoid the public internet. This means the performance of your network will influence the performance of your SIP service. Ensuring your network – including security and performance – is operating at peak levels will ensure your SIP service follows suit.
  3. Legacy services – moving from ISDN to SIP can sometimes mean more than just voice services. If you connect an alarm, fax machine or franking machine to your phone system or ISDN lines, these will also need to be migrated to SIP. Sometimes, legacy services require an analogue adapter or media gateway to translate the SIP signals to analogue. Make sure you factor in these legacy services when planning your SIP migration.