Issabel and Asterisk API

"I am looking for a professional experienced in Issabel and Asterisk to configure the Issabel system. The requirement is that when a call is received, the user hears a voice message and is prompted to enter a four-digit code. The system will then consult an API to verify if the code exists. If the code is valid, a specific voice message will be played; otherwise, an alternative voice message will be played."