OpenSIPs installation with PostgreSQL on CentOS

What is Opensips? - OpenSIPS is an opensource software implementation of the Session Initiation Protocol for Voice over IP that can be used to handle voice, text and video communication. - OpenSIPS is a multi-functional, multi-purpose signaling SIP server that can act as SIP Router/Switch, SIP Registrar, Application Server, Redirect Server, Load Balancer, Back-to-Back User Agent, Presence Server, IM Server, Session Border Controller, SIP Front-End, NAT traversal Server, IP Gateway (SMS, XMPP) and others. - OpenSIPS is highly flexible, has an application interface and modules for effective application building, and high scalability - This blog will describe the steps to