Hi Michael, Thanks for your answer (quoted hereafter).. "To answer your initial question: yes, what you are trying to accomplish is definitely possible. However if you want the caller ("A" in your scenario) to press only a single key then you can't use bind_meta_app (BMA). BMA requires two key presses: * and one other DTMF. That's why your scenario requires ** to trigger." ... but i'm already using bind_digit_action :-) I probably gave too much information and made the problem description unclear. Sorry about that & let me try to explain again : Every time the star key is pressed, it will correctly execute the lua script, no problem here.. But When executing that lua script : The first time, the standard freeswitch moh is heard (on the b_leg) when playAndGetDigits is called (on the a_leg). The 2nd time, my custom freeswitch moh is heard (on the b_leg) when playAndGetDigits is called (on the a_leg). Here are the instruction which are causing me headaches : */* Change the moh on the A leg */ *api:executeString("uuid_setvar ".. b_leg_uuid .. " hold_music /usr/local/freeswitch/sounds/fr/ca/june/voxService/*fr_wait_**email.wav*");* /* Play and request digit (B leg) */* digit = session:playAndGetDigits(1, 1, 1, 5000, '#', '/usr/local/freeswitch/sounds/ fr/ca/june/voxService/fr_ask_email.wav', '', '\\d+'); I was expecting fr_wait_email.wav to be played every time, but it look like "uuid_setvar <b_leg_uuid> hold_music <custom_wav>" is not taken into account on-the-fly, but only after bind_digit_action is finished. Is that a normal behaviour ? If yes, what would be the correct way of changing the moh when bind_digit_action is executed ? Regards, Julien