A2billing callbackcông việc

...TWS API will send order to TWS o TWS will send order to server of IB o When order status is changed, server of IB will call TWS o TWS will call TWS API o TWS API will call(callback) IBSampleApp to update order status on GUI. 2.2 New objects should be added: o Two global dictionaries(GD), and two vectors o GD_TStoIB: a GD which has a vector, V_TStoIB

...order it was received. All our operators are busy at the moment, rather then waiting on hold, let us call you back when a operator is available. Please press 5 to use the callback feature or remain on the line and your call will be answers by the first available representative. Did you know that we provide a full featured mobile application for Apple

I have the a2billing installed and Elastix MT, but cant make it works.