The monthly charges script installation is very simple. Just set up the cron job in server and script will deduct every month DID and other charges such as DID rental, Monthly bundle package charges… etc.
15 1 * * * /usr/bin/php /home/OV500/portal/api/cronjob.php
This job is ruining every day in the morning 1hour 15 minutes. Scheduler time can modify according to your need. This script is calculating daily usage (Inbound and Outbound call charges) and generating SDR. 1st day of the month it is calculating DID rental charges in advance. Also, deducting bundle charges every month, in the same way, a DID rental.