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Automatic provisioning for Microsoft Teams

Verified Carriers

Our verified carriers have gone through an extensive testing process to ensure compatibility with Callroute. We constantly work with each carrier to ensure any future changes to services are thoroughly tested before rolling out to production.

Guaranteed Connectivity

We work with each carrier to ensure 100% compatibility

Local Media

Automatic geo-ip detection to connect media to nearest POP

Global Failover

Inter-region failover to ensure your calls never stop

Multi Carrier

Connect all your carriers to your tenant and share calling

European Carriers

6Degrees s on the list of Callroute Verified Carriers
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Add your carrier to our verified carrier list

US, Canadian, & South American Carriers

"Coolwave delivers 2 Way Voice services across 72 countries. Partnering with Callroute has enabled us to quicky extend our service offering to integrate with Microsoft Teams, Webex Calling and SIP based telephones without the need for any additional infrastructure or specialist services. With our Cool Operator platform we can collectively provide unique call packages specifically tailored to the customers business requirements. "
Coolwave Communications - Verified Carrier

Asia Carriers

Become a verified carrier

Join Callroute as a verified carrier and access new potential customers today

Verified Carrier FAQs

My Carrier is not listed, can I still use Callroute to connect my own carrier?

Yes. In addition to the carriers listed on this page, Callroute also allows you to connect your own carrier using our custom carrier connector. You will need to contact your carrier to obtain the connection details required to setup your own carrier service.

Do I need an account with a verified carrier?

Yes. As a verfied carrier, the telco has shared their connection profile with us and we have performed testing to ensure connections can be established. In order to use a verfied carrier service, you must have an account with your chosen carrier.

Can Callroute Introduce me to a verified carrier?

Yes. If you do not have an account with an existing carrier listed you can bring your own carrier or we can introduce you to the verfied carrier of your choice. Please contact us.

Why Choose a Verified Carrier vs Bring Your Own Carrier?

With a verified carrier, Callroute have performed extensive testing to ensure compatibility between our platform and the carrier. We maintain communication with the carrier to keep up to date with any changes that might impact compatibility. We then re-test and rollout any changes required to ensure that services remain up and compliant.


With Bring Your Own Carrier, we do not have this communication with your carrier. Should they change a setting that causes your connection to disconnect, Callroute will work to help resolve this as soon as possible. However, due to the lack of a communication channel, this would be reactive to any issue as we would not have advance notice of this.

Get in touch

+44 204 517 8000
Your self-service platform to connect any carrier, in any country to Microsoft Teams. We put number management, policy management, and PSTN connections into a single portal.

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Intermittent Microsoft Teams calling issues reported globally. This issue appears to be affecting all Microsoft customers worldwide. Microsoft are currently investigating the issue. All Callroute systems are fully operational. More information will be provided as soon as possible.