How can I get a statement of account for a customer or vendor on the phone?

Hello Kotianwala, 

Glad to have you connect with us here in the Community, QuickBooks is a versatile program that simplifies the way you manage your accounting. I'll be happy to steer you in the right direction so you can continue to manage your work with peace of mind. 

The program allows you to create/send out customer statements but this would have to be done using a web browser. I can see the benefit of having this feature on the mobile app and I encourage you to send feedback about this to our engineers. You can send feedback by clicking on the Gear icon and looking for Feedback. In the meantime, here's a helpful article that provides more info on how to Create and send customer statements in QuickBooks. 

Let me know if this info helps. I'll be here in case you need anything else.