How to change plan capacity Mark Gibbons 18 July 2019 20:08 Updated To change your SIP trunking plan capacity, log in to your babyTEL web portal and click on "Shopping". Next, click "Capacity" under the "Store Menu". Increment or decrement as much as you need to for your plan capacity, then click continue. Choose whether you would like to make the changes immediately or at the start of your next bill cycle. Confirm the changes and you're all set!