Webex Calling

Cloud calling for Cisco Webex: How certified providers connect your voice

Reyna Cunningham

Jun 2026

Cloud Calling for Webex: How Certified Providers Connect Your Voice

Which certified providers offer cloud calling solutions for Cisco Webex?

Certified providers for Webex Calling are the carriers Cisco has approved into its Cloud Connect program, listed in Control Hub as Certified Calling Providers. They supply external PSTN calling through a tested, supported connection to the Webex cloud. The strongest fit also owns the voice service across the countries you operate in.

Two things separate a strong choice from a workable one. The first is certification. The second is whether the provider owns the voice network in your markets or just connects you to it.

What Webex Calling needs before it can make external calls

Webex Calling handles the call control and the app your users see. What it does not include is the connection to the public phone network, the PSTN. To make or receive outside calls, a Webex Calling location needs PSTN connectivity configured in Control Hub.

Cisco offers three models for that connection.

  • With Cisco Calling Plans, Cisco is your carrier.

  • With Cloud Connect (Cisco's Cloud Connected PSTN, or CCP), a Certified Calling Provider supplies the PSTN through a direct peering with the Webex cloud, set up in Control Hub.

  • Local Gateway is the bring-your-own-carrier route. You connect an existing carrier over SIP through a gateway you run yourself, usually a session border controller (SBC) such as Cisco CUBE.

What "certified" actually proves

Cisco separates Certified Calling Providers from the program's other Calling Providers. Certification means the provider has completed Cisco's tested interop process and is officially supported.

For a buyer, certification carries practical weight. The connection is validated end to end, so call behavior is predictable rather than best-effort. The support path is documented, so a fault has a clear owner instead of a finger-pointing loop between vendors.

Cloud Connect also removes the customer-managed gateway. The provider peers directly with the Webex cloud, so you do not run an SBC or maintain its patching and certificates. Local Gateway gives you more control and keeps your existing carrier, but you own the edge and everything that comes with running it.

Why certification alone is not the whole decision

Certification answers one question: does the connection to Webex work as Cisco intends? It does not answer a second: who actually owns the voice service in each country you operate in?

A provider can hold Cisco certification and still resell a local carrier in some of your markets. That matters for the usual reasons in multi-country voice: who controls porting

and who carries the emergency-calling obligation in each market. So the buyer's filter is two-part. Certified by Cisco, and the carrier of record in your countries rather than a reseller.

What a single Certified Calling Provider does across borders

Cloud Connect spans more than 70 markets through its Certified Calling Providers. For a multinational, the value is one provider across as many of your countries as possible. You enable each location from Control Hub, instead of a different arrangement per region.

That only holds if the certified provider also owns voice in those markets. A certified link on top of resold local carriers still leaves you exposed to the gaps of whoever holds each license.

Where Pure IP fits

Pure IP is a Certified Calling Provider in Cisco's Cloud Connect for Webex Calling program. It also owns the voice network across the countries it covers, with full PSTN replacement in 50+ countries. A Webex Calling customer gets a certified connection and a carrier that holds the service in those markets, billed under one contract.

Common questions

What does it mean for a provider to be certified for Webex Calling?

It means Cisco has admitted the provider to its Cloud Connect for Webex Calling program as a Certified Calling Provider, after a tested interop process. The connection is officially supported and configured in Control Hub.

What is the difference between Cloud Connect and Local Gateway?

With Cloud Connect, a Certified Calling Provider peers directly with the Webex cloud and you run no gateway. With Local Gateway, you keep your own carrier but operate the SBC yourself.

Do certified providers cover multiple countries?

The Cloud Connect program spans more than 70 markets across its providers. Coverage per provider varies, so check Control Hub for the ones available in your specific countries.

Does certification mean the provider owns the voice service in my country?

No. Certification proves the Webex connection works. It does not confirm who holds the carrier license in each market, so ask the provider directly whether it owns or resells voice there.

Before you choose a provider

Start in Control Hub. List the Certified Calling Providers available in your countries, then ask each one whether it owns the voice service in those markets or resells it.

Talk to a Certified Calling Provider that runs PSTN replacement in 50+ countries.