eduguru Session Initiation Protocol (SIP) and Signaling System 7 (SS7), both are the common protocols used for transmitting voice across networks. Session Initiation Protocol (SIP) is a protocol developed by IETF MMUSIC Working Group and proposed standard for initiating, modifying, and terminating an interactive user session that involves multimedia elements such as video, voice, instant messaging, … Read more
The Session Initiation Protocol (SIP) is a signaling communications protocol, widely used for controlling multimedia communication sessions such as voice and video calls over Internet Protocol (IP) networks. The protocol defines the messages that are sent between endpoints which govern establishment, termination and other essential elements of a call. SIP can be used for creating, … Read more
Seven Easy Steps to Better SIP Security on Asterisk: 1) Don’t accept SIP authentication requests from all IP addresses. Use the “permit=” and “deny=” lines in sip.conf to only allow a reasonable subset of IP addresess to reach each listed extension/user in your sip.conf file. Even if you accept inbound calls from “anywhere” (via [default]) … Read more
Age of Empires is a series of personal computer game developed by Ensemble Studios and published by Microsoft Studios. The first title of the series was Age of Empires, released in 1997. Since then, seven titles and three spin-offs have been released. The titles are historical real-time strategy games, and their gameplay revolves around two … Read more
Linux As the root user (or user with appropriate permissions) Type “ifconfig -a” From the displayed information, find eth0 (this is the default first Ethernet adapter) Locate the number next to the HWaddr. This is your MAC address The MAC Address will be displayed in the form of 00:08:C7:1B:8C:02. Example “ifconfig -a” output: eth0 Link … Read more
Possible Cause : 1. htaccess file 2. Php Coding Time out 3. CGI Script Error 500 Internal Server Error is a generic error message, given when no more specific message is suitable. There are a number of causes for a 500 Internal Server Error to display in a web browser. Figure 1 is a sample … Read more
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WinSCP is an open source free SFTP client and FTP client for Windows. Its main function is the secure file transfer between local and remote computer. It is one of the best SFTP and FTP client available in the market. Download link : http://winscp.net/eng/download.php
Microsoft have cancelled support for Windows XP and may also be seizing support for Microsoft Security Essentials, it may be time for consumers to start looking for another antivirus system such as Avast or AVG. To grasp the severity of this, let us go into some detail. Antivirus apps are worthwhile just as long … Read more
Remote Desktop is disabled by default in Windows 7, 8, or Vista, but it’s easy enough to turn it back on. If you need to access your Windows PC from another box, it’s an essential thing to turn on. Important note: Remote desktop is only included in the Professional, Business, or Ultimate versions of Windows. … Read more