FreePBX 18.104.22.168 on Elastix 1.3
My customer has a MV-372 portech gsm gw.
I have defined 2 sip trunks, one for each sim.
I have an outbound route that start every time with first sim and fall down to second sim, when the first is CHANUNAVAILABLE (sip code error 503).
Al is ok, until now.
Now my customer has subscribed with his telco provider a monthly flat rate: 5,5 hrs/days/sim
So, now i need to balance total traffic between the 2 sim.
Without balancing, the first sim (trunk) will be overused, vanishing any convenience in flat rates.
Any advice or suggestion will be apreciated.