Intelligent, secure cloud calling built for the modern enterprise
Cisco Webex Calling goes beyond traditional telephony—delivering an intelligent, AI-powered calling experience designed to improve productivity and customer engagement. From an always-on AI Receptionist to real-time assistance and insights across the caller journey, Webex enables a smarter, more connected workplace. Whether you’re planning a Cisco Call Manager Migration or evolving your Cisco UC estate, Resonate ensures a secure, future-ready transition.
Choose the right Webex Calling model
Webex Calling provides flexible PSTN connectivity options to support everything from hybrid enterprise telephony to fully cloud-based voice deployments. Resonate can advise, deploy and support you with your chosen modality for PSTN Connectivity
- Local Gateway- Resonate provides external phone network access with its Voice for Webex Calling platform – using its hosted Session Border Controllers (SBC) or deploying on-prem if required, providing SIP if required or enabling you to retain your existing telephony provider
- Cloud Connected – Resonate works with its partners to support you in connecting via Cisco approved providers for simplified, fully managed cloud telephony
- Cisco Calling Plans: for simpler deployments, we can help you adopt a fully cloud-native model with Cisco delivering both platform and PSTN
Features
What sets Webex Calling apart?
AI-powered calling
With tools like AI Receptionist to automate first-line customer interactions as standard and Webex Calling Customer Assist, enabling real-time engagement from anywhere.
AI Intelligence across the call journey
Improving efficiency, productivity and customer satisfaction
Market leading security and resilience
Across Cisco’s global infrastructure
Scalable cloud architecture
Supporting global organisations and distributed workforces
Your trusted Cisco Webex calling partner
Migration expertise
Proven Cisco Call Manager Migration specialists, delivering complex enterprise transformation programmes
Cisco expertise
Deep expertise across Cisco UC Managed Services and multi-platform voice environments
Trusted partner
The architects behind SCC’s Cisco preferred collaboration partner status
Hybrid integration
Specialists in Cisco to Teams Migration and hybrid interoperability strategies with a trained team of experts on hand to integrate Webex with UC and Teams
Enterprise migrations
Track record in migrating legacy voice to Webex for enterprise customers
End-to-end delivery
End-to-end delivery—from design and deployment through to optimisation and ongoing support
Their dedication and professional approach have made a significant impact on our operations, paving the way for future technological advancements and improved patient care.” IT Manager and eHealth Lead for a Scottish Health Board
Webex calling FAQs
01What PSTN connectivity options are available for Webex Calling?
Cisco Webex Calling supports three primary models—Local Gateway, Cloud Connected PSTN and Cisco Calling Plans—allowing organisations to choose the right balance of control, scalability and simplicity for their environment.
02What is Local Gateway in Webex Calling?
Local Gateway connects Webex Cloud Calling to existing SIP trunks and carriers via a Session Border Controller (SBC). This allows organisations to retain number ranges, maintain routing control, integrate with platforms like Cisco Call Manager, and support complex or regulated environments while enabling phased Cisco CUCM Migration.
03What is Cloud Connected PSTN?
Cloud Connected PSTN enables direct connectivity to Cisco Webex Calling through certified provider partners. It removes the need for on-premises infrastructure or cloud SBC’s, offering faster deployment, global coverage and a fully managed PSTN service—ideal for organisations adopting cloud-first strategies.
04What are Cisco Calling Plans?
Cisco Calling Plans provide PSTN connectivity directly within Webex Cloud Calling, delivering a fully cloud-native voice solution. This simplifies deployment, billing and support by using Cisco as a single vendor for both platform and telephony services.
05Can I migrate from Cisco Call Manager to Webex Calling?
Yes. A structured Cisco Call Manager Migration or Cisco CUCM Migration enables organisations to transition legacy platforms into the cloud through phased or hybrid approaches, ensuring business continuity.
06How do I choose the right PSTN option?
The right model depends on your priorities—Local Gateway for control and compliance, Cloud Connected PSTN for scalability and simplicity, or Cisco Calling Plans for rapid, standardised cloud deployment.
07What role does an SBC play in Webex Calling?
SBCs provide secure voice connectivity between Webex Calling and external networks, helping organisations support hybrid deployments, PSTN access and migration from legacy voice platforms.
08Which SBC platforms are commonly used with Cisco voice environments?
AudioCodes and Ribbon are among the most widely deployed SBC platforms used to support Cisco voice and collaboration environments.
09Do I need an SBC for a Webex Calling deployment?
Requirements vary depending on the deployment model, PSTN connectivity and integration requirements. Organisations operating hybrid voice environments often use SBCs to support interoperability and security.
10How do SBCs improve voice security?
SBCs help secure voice traffic through encryption, session control, threat protection and policy enforcement, reducing the risk of fraud and unauthorised access.