Webex Cloud Calling is a cloud-based telephony service from Cisco that enables voice calls over the internet (VoIP), providing a modern alternative to traditional PBX systems. The service is fully integrated with the Webex ecosystem, offering a comprehensive solution for business communication.
Key features of Webex Cloud Calling:
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Cloud telephony: The system does not require local infrastructure—everything is managed in the cloud.
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Integration with Webex: Direct connection to other Webex services such as meetings, chats, and team collaboration.
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Mobility: Users can make and receive calls from anywhere and from any device – desktop application, mobile app, or desk phone.
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Advanced telephony features: Includes call forwarding, call queues, voicemail, IVR, call recording, and many other business-class features.
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Scalability: Easily adapt the solution to small, medium, and large organizations
Connection to the PSTN network
Webex Calling provides flexible connectionto the public PSTN (Public Switched Telephone Network), allowing you to make and receive calls from traditional telephone numbers. Cisco offers three main models for accessing the PSTN:
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Cisco Calling Plans (Cisco Cloud PSTN) – Cisco acts as a PSTN service provider, offering direct numbering, local and international calls, and emergency numbers.
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Local Gateway (hybrid PSTN access) – Connects your local infrastructure (e.g., existing PBX or PSTN provider) to Webex Calling using a local gateway. This allows you to leverage your existing telecom contracts and transition smoothly to cloud telephony.
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PSTN Partner (Cloud Connected PSTN) – Cisco enables integration with certified PSTN providers who connect directly to the Webex Calling platform, providing public call support without the need for local gateways.
Benefits of PSTN integration:
- Global coverage and support for calls to traditional phone numbers.
- Flexibility in choosing a PSTN service provider.
- Seamless migration from on-premises systems to the cloud.
- Support for emergency numbers and local telecommunications regulations.
Thanks to this flexibility, Cloud Calling can be adapted to both companies fully transitioning to the cloud and those that want to retain part of their local telecommunications infrastructure.