Asterisk atme responder

Got a problem with some trunks on this trunkgroup. The lec has a responder they can test to me through. Does anyone know if it is possible to set up asterisk as a tone responder. I need to generate and listen to three tones at (400, 1020, and 2800 Hz) and two different levels (0 and -10 dBm). This as a basic test requirement to find one way audio on one many trunks I have in this group (sufficed to say more than i would want to have to tbird test with if i had one). Does anyone know if this fine level of tuning is possible/feasible for an attempt to use asterisk and what hardware would be required.