Yes, you can. If you want to make calls or buy a number during your trial period, you can purchase phone credits and buy the numbers you want.
You do not need to purchase any subscription plan to buy phone numbers or make calls. You have full flexibility to test out different calls and workflows during your trial. However, during the trial period, the call duration is limited to 2 mins.
We have built a detailed knowledge base to help you customize and use Freshdesk Contact Center. However, if you require additional support, you can reach out to firstname.lastname@example.org.