want a module for vicidial so answering machine auto call not charged by voip swich

Good day! I work with the asterisk and PBX systems over 8 years. Also have expirience in Freeswitch I created a lot of call centers that are working successfully for several years. I have my own call center and my own server on which i install the hybrid Vicidial\Goautodial and FreePBX\a2billing. It is configured and ready to go.I can show you it to the test. I integrate Vtiger\Sugar CRM etc. I install and configure KVM hypervisors and work with virtual machines I have experience in supporting operators and customer of call center. I managed call center for more than 3 years. My last job was: Creating PBX system with billing, call center and CRM modules for US Provider I think I can provide you with good and quality services.