Introduction
The Click2Call service is built on top of the RTC X services. It allows a user on a web page to initiate a call between any telephone and a selected recipient, typically an advertiser.  The call is initiated via a SOAP request. The phone number given by the user is first called. When answered an optional voice prompt will tell the user to wait while connecting the call. Then the second call is initiated, to the chosen recipient. When answered, an optional voice prompt may be played to the recipient and then the two calls are connected via the RTC platform. Optionally recipient may have calls forwarded to another phone number or to a voice mailbox on no answer. |
Product shortcuts      Customer Case          Executive summerySystem ArchitectureSystem ArchitectureRTC propose a VoIP service solution built in a highly modular way, using open standards and best practices. This solution offers the scalability, reliability and price performance Service Providers might ask for. RTC and its partners have a long and proven track record that guarantees an extremely good user experience and novel services, now and in the future. RTCs offer an extensive range of IP-based services such as IP-Telephony, two-stage-dial, chat and click-2-call. RTC propose a complete turnkey service platform that works together with VoIP enabled mobile phones, analogue terminal adapters and softphones. With this system subscribers will be able to use VoIP, presence and instant messaging to communicate over Internet with each other. They can also have a regular phone number that will allow them to make and receive PSTN calls. 
System architecture. Subscribers interact with the system via the phone and the web portal. The service platform is highly modularized. The major benefit of this is that the different modules can be scaled independently, which is an important factor when building the requested system that must scale up to very high numbers of subscribers. The modular design also improves the availability of the system. Conceptual OverviewConceptual Overview
Proposed VoIP solution The service platform consists of the following major modules:
The software modules in the system match the hardware topology closely, since the hardware and software is modularized together. As seen in the above drawing much of the communication between the modules and with the subscriber uses SOAP/HTTP/HTTPS as the protocol. This allows us to use standard off-the-shelf load balancers for scaling and availability. The SIP communication is load balanced using DNS SRV records, which allows the system to use round-robin load balancing with optionally different priority levels (loads). Since all parts of the system is redundant and load balanced, moving parts of the platform to a new location or setting up additional server sites will be as easy as adding more servers locally. Launching services in new countries does not require any changes in the service platform. Web site needs to be localized and possibly new call tariffs in the new currency must be added. Also new local phone numbers must be inserted. However, the platform was designed to offer services in multiple countries from the beginning. Therefore there are only configuration changes needed. Local requirements or regulations may need customization of some parts of the platform. The modular design simplifies this task. There are no needs to put up a complete platform in each new country where services are deployed. Business AdvantagesBusiness AdvantagesRTC Factory's unique strength is that we can provide a telephone service, which is equipment vendor neutral, based on open licensees and with high voice quality. Proven Technology
Extensive Network Connectivity Operational Advantages Customizability |
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