IPG2160 IPG2320 GSM 2G VoIP Gateway User Manual
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How to configure maximum call limitation
Preset: 1200 minutes (Ct) for each SIM
Case1. The SIM card billing every 60s (Cu)
So we have to configure maximum call duration as below:
Step = Cu = 60s;
Maximum Call Duration
= total call minutes of SIM (minutes) * 60s / step = Ct * 60 /
Cu =1200 * 60 / 60 = 1200 step
Case2. The SIM card billing every 6s (Cu)
So we have to configure maximum call duration as below:
Step
= Cu = 6s
Maximum Call Duration
= total call minutes of SIM (minutes) * 60s / step = Ct *60 /
Cu = 1200 *60 / 6 =12000 step
4.6.3 PIN Management
Figure 4-6-4 PIN Management
