SIP.conf – General option in SIP.conf SIP Configuration – general The [general] section of sip.conf includes the following variables: allowsubscribe = yes|no : Allow or Ignore Subscribe requests allow = <codec> : Allow codecs in order of preference (Use DISALLOW=ALL first, before allowing other codecs) disallow = all : Disallow all codecs (global configuration) allowexternaldomains = yes|no : Enable/Disable … Read more
download asterisk 13 dahdi and libpri Asterisk is an open source framework for building communications applications. Asterisk turns an ordinary computer into a communications server. Asterisk powers IP PBX systems, VoIP gateways, conference servers and other custom solutions. It is used by small businesses, large businesses, call centers, carriers and government agencies, worldwide. Asterisk is … Read more
Setup SFTP Server on linux CentOS 7 or any Linux server distribution is a very powerful server that performs above and beyond what your business might need. Whatever task you throw at the server, it will be ready. And, if it isn’t ready out of the box, you can make it so. A complete and simple … Read more
dahdi You do not appear to have the sources for the kernel installed It is important that the kernel version being used match exactly that of the kernel source being installed. You can use uname -a to verify the currently running kernel version: CentOS: sudo yum install kernel-devel-uname -r Ubuntu: sudo apt-get install linux-headers-`uname -r … Read more
Get Email Alert on Root Login Linux To improve the security of the server, especially web server which exposes to the Internet and possible worldwide hackers, it’s best to enable server to automatically send a notification email to predefined email address every time someone logs in as root to the host. You can configure the … Read more
asterisk task processors : high queue size warning You may have seen the “task processor queue reached 500 scheduled tasks” in asterisk. Let’s understand what is the meaning of this warning and what this cause. Task processors have been in Asterisk for a long time. Since Asterisk v12, they have become more important because the … Read more
Saving a curl response into a php variable Here is example to save a curl resonse into a variable in php <?php //URL of targeted site $url = “http://www.putyourapihere.com/”; $ch = curl_init(); // set URL and other appropriate options curl_setopt($ch, CURLOPT_URL, $url); curl_setopt($ch, CURLOPT_HEADER, 0); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); // grab URL and pass it to … Read more
get the last 7 characters of a PHP string Use substr() with a negative number for the 2nd argument. $newstring = substr($dynamicstring, -7); string substr ( string $string , int $start [, int $length ] ) If start is negative, the returned string will start at the start’th character from the end of string Example: <?php echo … Read more
mysql length function : calculate length of a column Function length() Return the length of the string Usages SELECT CustomerName, LENGTH(CustomerName) AS LengthOfName FROM Customers; Tablenames Records Customers 91 Categories 8 Employees 9 OrderDetails 2155 Orders 830 Products 77 Shippers 3 Suppliers 29
Uninstall the old dahdi drivers asterisk ssh the server via putty First check the dahdi modules installed by running below command lsmod | grep dahdi Now uninstall all the modules which shown from above command like this. modprobe -r wctc4xxp wctdm24xxp wcte12xp xpp dahdi_transcode wcb4xxp modprobe -r wctdm wcfxo wctdm24xxp wcte11xp wct1xxp wcte12xp modprobe … Read more