[Freeswitch-users] Question about mod_nibblebill.

Hello, I have a question about the mod_nibblebill module of freeswitch. I can use mod_nibblebill to billing. But I found that his billing was not what I want. I want to achieve in this way: every 60 seconds for an interval of less than 60 seconds, 60 seconds to install basis, charging $ 0.1 for each billing interval. For example: the user dials 45 seconds, charging $ 0.1. If user dials 72 seconds, charging $ 0.2. My current configuration in dialplain\default.xml is as follows: <action application="bridge" data="{enable_heartbeat_events=60,nibble_rate=0.1,nibble_account=1000}user/${dialed_extension}@${domain_name}"/> May I ask, mod_nibblebill module can not achieve my desired function, if realized, how can I configure? Thank you.