Softswitch
Softswitch is the main element of the platform, which merges the functionality of the following VOIP architecture’s elements.

Each of the described elements can operate simultaneously with the others. Moreover, the clients, regardless of the protocol, or the way they transfer connections, can connect between one another. This option allows connecting the networks, which because of the differences in implemented protocols or dialects inside the particular protocol, cannot directly transfer connection between one another. Implementing VoipSwitch as a central traffic controller also introduces a number of additional management, supervision and network security facilitations.

The main characteristics of the softswitch include:
·        Simultaneous and transparent support of SIP and H323 protocols (sip→h323 and h323→sip translator
·        Possibility of implementing various types of proxy (e.g. RTP-proxy or signaling proxy), possibility of choosing proxy for each prefix defined in dialing plan.
·        Advanced routing and rating system Full internetworking with most commercially available switches, softswitches, session border controllers and VOIP gateways.
·        VOIP equipment support
·        NAT support both for SIP and h323 equipment
·        Calling to sip devices behind NAT (without the necessity of configuring NAT)
·        Calling among users registered to VoipSwitch, support for dynamic IP addresses
·        Authentication of VOIP equipment
o       Through IP address
o       Through ANI
o       Through h323id
o       Through the pair of login/password (according to the SIP standard)
·        Flexible routing
·        Individual, integrated billing system
·        Managing pre-paid and post-paid accounts
·        Setting up users in the VSConfig program
·        Managing users, blocking, setting limits
·        Generating the groups of users and managing lots
·        Creating and managing tariffs, the possibility of attributing a tariff to an individual user
·        Data stored in the MSSQL or MySQL database
·        Graphic management interface (presentation of the statistical data, billing information, managing clients’ accounts, generating PIN, managing the tariffs, dialing plan and others)
·        Graphic interface presenting the current traffic in the real time, number of the logged in clients, with the division into different types of services, presentation of logs and others
·        Web interface for clients – presentation of the connections history, possibility of exporting to the file, presentation of the current account status, possibility of making payments online and others
·        Easy to set up architecture
·        Automatic software re-start facilities in case of system failure
·        Scalability for new telecommunication services by enabling additional modules

Advantages of managing the system:
·        Simplify the management processes and network configuration changes of VoIP equipment
·        Unify equipment supporting different protocols (or dialects of one protocol)
·        Manage concentration and routing processes of VoIP traffic
·        Centralize authorization and billing tasks of VoIP calls in one point
·        Hide the network structure from third parties, if necessary
·        Utilize possibility of implementing value-added services such as: calling card system, IPPBX, callback system using additional software packages from SOLUTION4VOIP.