i only began really getting into the use of vouchers last year, when an agent wanted to use those to refill customer accounts. since the 1.4.2 does not give agents the ability to create vouchers, here are some requests i'd like to make for the voucher section of a2billing:
allow search by voucher id
allow agents to create and use own vouchers
when a customer uses a voucher from either the phone OR the web interface, it should change the status to used
*this might be a bug though...
just some suggestions...