Cloud Connect for Webex Calling

Cisco Webex Cloud Connect connects Webex Calling to the public switched telephone network (PSTN) through a certified Cloud Connected PSTN (CCPP) provider. With Sinch, you can enable global calling using a Tier-1 voice network backed by a 99.99% uptime SLA.
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Benefits of Cisco Webex Cloud Connect with Sinch

Consolidate PSTN services under one provider while keeping administration centralized in Webex Control Hub. It’s built for UC teams that need reliable voice quality, simpler number management, and global expansion.

Use Cloud Connect for Webex Calling to manage PSTN provisioning directly in Webex Control Hub.

  • Certified Cloud Connected PSTN (CCPP) integration for Webex Calling
  • Tier-1 global network for consistent call quality
  • 99.999% uptime SLA with geo-redundant architecture
  • Full PSTN replacement in the US and Canada, including emergency services (E911)
  • One provider across PSTN, SIP trunking, and CPaaS capabilities to reduce vendor sprawl
  • Optimize communication costs with competitive global calling rates and a flexible BYOC carrier model versus bundled PSTN plans

Top use cases

New Webex Calling deployments

Choose Sinch for Cisco Webex Cloud Connect from day one to enable external calling with a single global provider that scales as you add sites and users.

Global carrier consolidation

Replace multiple regional providers with one contract and unify PSTN operations through Webex Control Hub.

Replacing legacy voice systems

Move from on-premise PBXs and disparate carriers to Webex Calling while porting existing numbers and reducing hardware dependencies.

How it works

Set up Cisco Webex Cloud Connect with Sinch directly inside Webex Control Hub.

  • Step 1: Select Sinch as the PSTN provider for each location in Webex Control Hub.

  • Step 2: Order new numbers or port existing ones through the Sinch portal.

  • Step 3: Users make and receive external calls globally, with traffic routed over the Sinch network.

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Why choose Sinch?

Direct network routing for consistent call quality

Calls stay on Sinch’s owned voice network using direct routing (DR), avoiding least-cost routing (LCR) approaches that can introduce latency, jitter, and inconsistent call performance.

Seamless Webex control

Certified Cloud Connected PSTN integration supports faster setup and ongoing administration in Webex Control Hub.

Full-stack partner

One provider for PSTN, SIP trunking, CPaaS APIs, and emergency services to reduce tool and vendor complexity.

Unified Vendor Management

Simplify your communications stack by using one carrier (Sinch) to power voice across multiple UC platforms simultaneously.

Cloud Connect for Webex Calling FAQs

Cloud Connect for Webex Calling is a solution from Sinch that powers global PSTN calling within Webex Calling, using Sinch’s enterprise-grade voice network.

BYOC allows you to select a certified third-party provider like Sinch to provide PSTN services (inbound/outbound calling) for your Webex environment, rather than being limited to Cisco’s bundled calling plans.

No. With Sinch’s Cloud Connect integration, you eliminate the need for local PSTN gateways or Session Border Controllers (SBCs), creating a fully cloud-based communication solution.

Yes. Sinch offers managed number porting services to smoothly migrate your existing business phone numbers from your old provider to our network for use in Webex Calling.

Connect your Webex Calling tenant to Sinch, configure or port numbers in Webex Control Hub, and start making and receiving PSTN calls, typically within days.

You need an active Cisco Webex Calling subscription and the appropriate licensing to use the BYOC feature in your tenant.

Pricing is usage-based, with per-minute outbound rates and monthly charges for DIDs. Bundles are available for high-usage commitments.

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