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Limit the number of simultaneous calls on FreePbx trunk. If you want to limit the number calls for you sip peer or friend in Asterisk use call-limit in your trunk configuration. Create a trunk: trunkname type=peer host=HOST IP ADDRESS qualify=no context=from-trunk dtmf:rfc2833 call-limit=30 This will create a SIP trunk and max number of call . . . → Read More: How to limit the number of calls in asterisk If you are using VoIP (Voice over IP) then at some point you must have to troubleshoot the call flow to find where the problem is. There are many tools you can use. To teach you exactly how to use a protocol analyzer is beyond the scope of this material; however, we will give . . . → Read More: Troubleshooting SIP Service with ngrep This week one of our customer was attacked by more than 10000 Unique IPs. These hackers try to register on your system using some random username and easy to crack password. Few week back I wrote few tips on securing your asterisk servers. http://www.didforsale.com/blog/?p=185 Even if you took all the steps to secure your . . . → Read More: Is your Asterisk system under heavy attack |
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