In telinta terms we say numbers account means the total detail of purchased numbers which listed in “https://mybilling.telinta.com/account.html” after purchasing numbers it suppose creates on telinta. With this process the other process will execute which check/create(if customere is not exist on Telinta) customer account on telinta. which are listed on “https://mybilling.telinta.com/customer.html”. And for vendor’s listing it is listed on “https://mybilling.telinta.com/vendor.html”, And as i think this are the service provider.
with comparison of telinta and voip here voip numbers means Telinta’s numbers account, The customers “https://portal.voip.us/admin/customer” means “https://mybilling.telinta.com/customer.html” And Vendor(https://portal.voip.us/admin/vendors) means telinta’s(“https://mybilling.telinta.com/vendor.html”).
As your explanation i am thinking you want to synchronise customer accounts from telinta, am i right? And i am asking for screenshot of telinta side because it will be more clear which data do you want sync from telinta to voip. I just want to see that page of telinta.