I have one RingCentral account. i have created one application from developer.ringcentral.com so one sandbox account created over there with one number(Main Company Number).
what i understand from that is Main Company Number associated with sandbox account will be used for sending and receiving fax and messages.
is there any way to add multiple number in one single sandbox account from where i can send and receive messages and fax ? or i will have to create another ringcentral account to have other fax number or main number.