To change your SIP trunking plan type, log in to your web portal, then click on "Shopping".
Next, click "Plan" under the "Shopping" menu.
For example, you have SIP Trunking Lite and want to change to SIP Trunking All-In, you will see your current plan listed:
Choose the plan you will like to change to by checking the option:
Click continue and follow the steps choosing whether to change your plan immediately, or at the start of your next bill cycle.
Confirm the changes and you're all set!