The figures across the top
Two of those are the operator’s own commercial position: what they pay
carriers, and what they keep on top. Serving them to a tenant would disclose
the operator’s buy price to the customer paying it.
Withheld is not zero. The figure is left out and the panel says so. A
zero there would read as “this call cost nothing”, which is a false
statement about somebody’s business rather than a missing one.
The balance
Your balance, your credit limit and anything held. Held is credit reserved against calls in progress: money not yet spent and no longer available. It is what stops more calls being started than the balance can finish. A prepaid organisation is checked before a call is placed, not discovered mid-call. A caller refused for credit hears “your balance is not enough to make this call”, and a number with no price on your rate card gets “calls to this destination are not allowed on your account”. Both sentences can be replaced with your own recording.A postpaid organisation carries no balance and accrues instead, so the
balance card is empty rather than zero.
Your prices
The rates list is your side of the pricing: what you are charged per destination, with the connect fee, the per-minute price and the increment. The increment is read as minimum / step:60/60 bills a whole minute at a
time, 30/6 charges at least 30 seconds and then in 6-second steps.
The operator’s own cost cards are not shown, and the Rate cards panel
says so rather than appearing empty.