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Hi Friends!<br>
<br>
I wish to do something like:<br>
- Authorize all sip clients in external DB, for example postgresql.<br>
- Control each call session duration, just like prepaid calling card.<br>
- LCR, if one voip provider can't connect call into PSTN, try next
PSTN supplier.<br>
<br>
Please help me, i can't understand what is docs i might to read to know
how to do it.<br>
Could you show me some links and terms. explain it?<br>
<br>
Thank you so much!<br>
<br>
DM
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