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High-fidelity audio with European-grade security.](/gb/products/cloud-telephony/) + [![](/images/products-call-work-siptrunk-navbar-int_ZH5NzW.webp) ### SIP Trunk Secure cloud connectivity for your existing hardware. Scales instantly with your business.](/gb/products/enablement/) + [![](/images/products-call-work-devices-navbar-int_Z2dP6.webp) ### Devices Professional telephones and hardware designed for clear calls and all-day comfort.](/gb/products/devices) + [![](/images/products-build-automate-assistants-navbar-int_2ghUIJ.webp) ### Assistants ![AI icon](/assets/ai_icon.webp) Pre-configured, plug-and-play digital roles like FrontDesk and Workdesk. Ready to deploy instantly with zero coding required.](/gb/products/ai/assistants) + [![](/images/products-build-automate-bots-navbar-int_Z1p57Vm.webp) ### Bots ![AI icon](/assets/ai_icon.webp) Prompt-driven, multi-channel conversational experiences. Automate custom customer journeys across Web Chat, Voice, and Livechat.](/gb/products/ai/bots) + [![A chatbot creation interface is shown with a readiness message, build report, agent prompt details, and created tools list, over a gradient background.](/images/products-build-agent-studio-navbar-int_Z1Y88dE.webp) ### AI Agent Studio ![AI icon](/assets/ai_icon.webp) Simply turn your ideas into AI agents for your business. Describe the task, create a working agent, then optimize it in one workspace.](/gb/products/ai/agent-studio) + [![](/images/products-engage-support-navbar-int_1xyFBE.webp) ### Contact Center ![AI icon](/assets/ai_icon.webp) Omnichannel customer service for modern teams. 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[+44 330 383 8000](tel:+443303838000 "+44 330 383 8000") ![](/images/getstarted-writetous-navbar-int_ZY7MOf.webp) ### Write to us Fill out our request form. Our experts will respond as soon as possible. [Write to us](/gb/request-information "Write to us") ### Software as a Service (SaaS) [Software as a Service and its advantages](/gb/get-started/cloud-telephony/lexicon/knowledge-base-detail/software-as-a-service#section-3) [Various price models for Software as a Service](/gb/get-started/cloud-telephony/lexicon/knowledge-base-detail/software-as-a-service#section-4) # Software as a Service (SaaS) Software as a Service provides users with access to software that is installed on a network and does not need to be installed locally. Like Platform as a Service (PaaS) or Infrastructure as a Service (IaaS), Software as a Service (SaaS) is a subdomain of cloud computing. The software is operated on the premises of an external [provider](/gb/get-started/cloud-telephony/lexicon/knowledge-base-detail/telephone-provider). Users require an [Internet connection](/gb/get-started/cloud-telephony/lexicon/knowledge-base-detail/internet-connection) and a local computer client. In many cases, the software can be called up and run directly via the web browser. Software as a Service is not based on the traditional licensing model that allows users to purchase software along with the right of use. As the service recipient no longer needs to operate the software himself, a usage-dependent or time-dependent licensing model generally applies. ### Software as a Service and its advantages Software as a Service offers a whole host of advantages compared with classic software installed and operated on the user’s premises. Firstly, it avoids software purchasing costs, thus reducing the investment risk. Less time is required for implementation, as the service provider merely needs to unlock the software for the user. SaaS also reduces the complexity of IT systems and allows the user to focus on his actual business. The time and user-dependent price models ensure that IT costs remain transparent at all times. As an Internet connection is the only requirement for use of the software, the latter can be accessed from mobile devices without any additional investment. ### Various price models for Software as a Service A range of price models are available for Software as a Service. In many instances, a user-dependent or time-dependent fee is payable. However, sometimes the costs also vary depending on the software functions made available. The user can opt for only individual functions or the full range of software functions against payment of a corresponding fee. In another price model, the calculated fee is based on the number of user transactions. Such transactions may be online purchases or documents created. Further price models available include billing by CPU usage or data volume. Depending on the software, some providers also charge a one-off software setup or adaptation fee. 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