Some of SIP (VoIP) Trunk providers have bundle limits for customers.
Example 10,000 minutes $150 per/month.
https://www.siptrunk.com/sip-trunk-pricing/#plan-unlimited
it could be nice if we can limit the talking time of voip trunks. If the trunk reach talking time, outbound calls must route to another trunk or and ivr announcement.
I am not aware of any system that does this natively. I think this would be considered more of a call accounting function as you need to setup for more than just a bundle minute plan. You would have to account for all external calling as some ITSP with bundles will provide 10K minutes (example), but the 10K are split into inbound and outbound minutes, but still a total of 10K (presumably because the ITSP does not expect the client to know their calling patterns and the client will invariably exceed the minutes on one side or the other and then pay the penalty associated to such). This would then have to be tracked for each month or billing period and for each trunk that has such a need to include inbound calls and those that get forwarded back out (2 x minute usage). Depending on the call activity and the complexity of the trunks and routings, this might not be supportable on the existing platforms.
What do you do about inbound calls that cause the limit to be exceeded?
I am not saying its a bad idea, but rather that it would likely have to address the global ITSP community of rate schemes.
You might check and see if there are call accounting packages that could take a feed and provide what you need. The S PBX has a billing module and while I have never used it, there might be someway that it could provide some insight into what you seek.
Nevertheless, maybe YS can figure out a way.
Agree with Larry and billing is a good idea.
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