VoipSwitch is a platform that allows to implement various types of Voice Over the Internet Protocol (VOIP) services, with retaining shared, uniform management interface. The feature that distinguishes this platform is the implementation of an integrated, embedded billing system that cooperates with SQL - MS SQL or MySQL databases' servers. This solution results in the simplicity of preparing the system, by the operator, to be fully functional for providing services and also for administrating it in the future. VoipSwitch's software consists of the following modules:

• VoipSwitch manager - the main part of the application. It allows to monitor the whole incoming traffic. Apart from the current connection status and the type of logged in clients, it also presents a number of additional information on the processes that are taking place.
• VoipSwitch Config - management interface. It is a tool for configuring the whole system. It has a number of features that allow to manage clients' billing and analyze traffic information, based on the statistical data.
• Web CDR - the module that allows clients to check their current account status and the history of the calls made. There is a possibility of exporting data to the file from this level.
• PC to Phone Client - softphone based on the g723.1 codec.
• Webphone - softphone that can be initiated directly from the website.
• Callback Client - client's software that allows to initiate calls between two telephones.
• Webcallback - client's callback version that is initiated directly from the website.
• SMS callback - module that cooperates with the SMS operators. It also allows to create access number for SMS callback service using the mobile phone.
• IVR module - module responsible for playing back voice messages utilized by various services e.g. 2 stage dialing, account balance or IP PBX.
• Online Shop - module that allows to make payments using credit card or Paypal service.
• Reseller's module - web based system that allows resellers to create users accounts, manage them, manage the tariffs, and analyze the information on the traffic that is taking place etc.
• CallShop - windows based application that is to be installed in internet callshops, it gives real time information on connection status, the telephone number, time of the connection, its cost etc.

Main features:

• Integrated Interactive Voice Response System (IVR) - voice messages.
• Multilingual service. Several languages are supported by the system, including English, Spanish, French, Vietnamese, Chinese.
• Possibility of assigning a particular language to the access number of a particular service.
• Possibility of assigning a particular language to the given user.
• Possibility of choosing the language by the user.
• Voice information on the current account status (dependant on the settings, this information can be provided during each connection with the system or by reaching previously defined number e.g. 111)
• Voice information on the maximum, possible call duration for the particular number.
• Possibility of initiating a call with the other number without the necessity of calling the access number for the second time (the connection with the user remains active)
• Possibility of terminating the connection, by entering previously set combination from the keypad (e.g.. ##), and dialing other number.
• Possibility of adding funds to the account by entering the PIN on the web site or sending it by SMS
• Possibility of setting up a new account or adding funds to already existing account by using a credit card. (utilizing the online shop module)
• Fast access to the particular number by using a directory , previously defined by the user (directory can be managed through the web site).

Each of the module is mutually integrated what allows, for instance, Pc2Phone user to access, from this application, information on the history of calls made, price list or current account status. Also, from the same level, it is possible to add funds to the account or to utilize SMS Callback service. On the other hand, division into the separates modules allows adjusting the implementation of given services to the desired time frame. For instance, Callback service, IVR, online payments or Reseller Module can be added at any time without disturbing the functionality of the system. Compatibility and simplicity of usage also refers to all the modules created by VoipSwitch. what gives the provider the possibility of extending the range of services offered, or building on the services already utilized according to the existing clients' expectations and emerging of the new technologies.

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

H323 switch
H323 gatekeeper
SIP Proxy
SIP registrar

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

• by IP address
• by ANI
• by h323id
• by the pair of login/password (according to the SIP standard)

• Flexible routing
• ndividual, 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 VoipSwitch

STANDARD APPLICATIONS

Central point of your VOIP network

Main benefits:

• Management of authorization rules of VoIP-gateways
• Setting up call routing rules
• Provisioning of compatibility for H323 and SIP- equipment of various vendors
• Security and load planning of VoIP-traffic by using optional RTP-proxying
• Access to the statistical data (ASR, PDD and others)
• Transparent interface of the billing system

Network security

When using RTP-proxying VoipSwitch provides a single entry point for VoIP traffic.Both for clients and carriers there is only one IP address available.

Integration of equipment with support of different protocols

One of the most important features of RSF1000 is its ability to support widely accepted signaling IP-protocols - SIP and H323. The system provides transparent converging of one protocol into another, thus allowing performing calls from one type of equipment to another.

SCALABILITY

Through launching subsequent modules, it is very convenient for a provider to extend the range of services offered. Available modules:

• IVR for calling cards
• Web/SMS/ANI callback (with IVR)
• Reseller's module
• Online shop
• CallShop

SPECIFICATIONS

Supported protocols

1. H.323 v.2 (H.245 v7, H225 v4) with/without FAST START
2. SIP (RFC 3261)
3. proxying of RTP/RTCP streams
4. based on accessibility of the VOIP gateway
5. based on priorities when choosing a gateway
6. depending on available voice codecs
   

Phone Numbers Translation

• Deletion of the set number of digits from the called party number
• Addition of the set number of digits to the called party number
• Deletion of the set number of digits from the caller number
• Addition of the set number of digits to the caller number
• Virtual prefixes (for differentiation of the dialing plans)

Information for the Billing System

• Real-time, built in billing system
• Storage in SQL database (MSSQL or MYSQL)
• pre-paid and post-paid accounts
• Payments history
• CDR – examining the logs of the calls carried out from the VSCConfig level, possibility of filtering data according to the set parameters, possibility of exporting data to the file (html, excel, txt, or csv type), presenting the CDR on the WWW pages available for clients

System Management and Control Features

• Graphic User Interface for managing the overall functionality of the system
• Visual presentation of current connections along with the information on their status
• The number of statistical data presenting the information on the traffic intensity with its various parameters e.g. ASR, PDD. Possibility of limiting the number of data presented by using available filters e.g. only incoming traffic from the particular client, traffic directed to the particular gateway, or prefix etc.
• Visual presentation of logged in clients and their current status, with the division into types of services e.g. gatekeeper users, SIP users, pc2phone, callback.

Operating Systems

Windows 2000, 2003, XP

WebPortal is a web based tool that allows to create a complete website in a short time by only modifying and reorganizing existing components. The application provides advanced and unique technology for managing the website's appearance and functionality delivering ready to use objects that enables customers to utilize fully all the features offered by Voipswitch. The WebPortal requires Internet Information Server (IIS), which is the part of the Microsoft Windows, and the NET2.0. component to be installed.

Features available to logged-in users:

• Call detail record (CDR) - displays information about the calls made by users. It is possible to export the data to a file.

• Redirect section - available to "pc to phone" or "device to phone" users. In this section, a user can define the telephone numbers to which the call will be re-directed depending on the occurrence of a particular event (e.g. client is not logged in, number is busy, client fails to answer a call).

• Rates - used to show individual rates for particular destinations defined in the client's tariff. Possibility to export the rates to a text file.

• Payments - enables viewing the history of payments.

• Phones - available to "calling cards" (IP IVR) and callback users. In this section users can add their caller IDs (ANI) used in the authorization process. A user who calls from a telephone number which was previously added does not have to enter the pin number in order to log into the system.

• Address Book - enables to add, delete and edit entries in the address book.

• Missed Calls - shows the list of unanswered calls made to a particular client. It also contains detailed information about the call time and the phone number from which the call was made.

• Recharge - allows to top up the account of a currently logged user. The account can be funded by entering a special, recharge PIN (associated with an amount) or by the means of the OnlineShop. The latter is available in the VoipSwitch offer and supports the following payment systems: PayPal, IPG, Paradata, Authorize.net, SaferPay, Przelewy24, ENets and quickpay.

• Pc to Phone dialer - an ActiveX version of our SIP based softphone (SIPLink); allows placing calls directly from the web.

• Callback dialer - web version of the callback dialer, enables triggering callback calls directly from the web.

• Client Info section - allows users to enter or amend their contact/address details. These details are used by other parts of the system, e.g. for generating invoices or notifying customers about low state of their accounts.

• Cabins - accessible only to the callshop users. It enables viewing, adding and deleting cabins belonging to given callshop's account. To each cabin, there is ascribed a tariff which can be edited in this section.

• Routes - provides an access to records of the calls that have been sent through a particular gateway. This section is available only through a direct URL (there is no link on the main website) and is intended for the traffic terminators to let them access the billing.

The WebPortal is delivered with a set of exemplary design templates. The standard of css files is well documented and thus even a person with basic knowledge about website designing should not find it difficult to modify. We will employs graphic designers and website designers who can create, subject to additional payment, a new, unique design. It is also possible to add new functional sections.