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Discover a comprehensive Solutions Center hub with resources, documentation, and expert guidance for all your business communication needs.

Access our dedicated customer service team around the clock, every day of the year. Get immediate assistance when you need it most.

Stay informed with real-time service updates, maintenance alerts, and important system notifications to keep your business running smoothly.

Monitor live system performance updates and network health metrics to ensure optimal communication service delivery across all platforms.

Technical support escalation for critical issues

Project implementation and deployment issues

Sales inquiries and contract negotiations

Billing disputes and account management

Strategic account growth and optimization

There is no better relationship in the industry than ones CallTower has with its partners. Here are just a few things that make working with us truly awesome.

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At CallTower, we consider our channel partners as family, valuing successful relationships through excellent support and financial rewards.

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Discover Are benefits of our Agency Partner Program for your business. Unlock revenue streams, scalable growth, and extensive support.

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CallTower's MSP Partner Program empowers service providers by simplifying taxation and enhancing efficiency through tools including the GTx self-service platform.

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MS Teams for GCC High Brochure

GCC High CallTower’s Microsoft Teams Phone & Audio Conferencing Services Hosted In GCC High

CallTower’s Direct Routing for GCC High is designed to meet the unique requirements of Microsoft 365 Tenants hosted in GCC High, including PSTN geo-redundancy, end-to-end encryption, audio conferencing and dial-in DIDs.

This includes residency in Azure Government, full US data sovereignty and limited integration with third parties. CallTower is the ONLY PROVIDER with a fully hosted solution that can enable voice for GCC High with Teams Audio Conferencing.

Microsoft GCC High includes many of the same feature sets and products of the commercially available Microsoft 365: SharePoint Online, Microsoft Teams, Exchange Online, OneDrive for Business, etc.

With the challenge of the global coronavirus pandemic and the evolving nature of the workplace, more and more companies are demanding collaborative voice and audio-conferencing options within GCC High solutions. Microsoft does not offer PSTN access directly and it must be added via direct routing.

Many organisations need to fill a crucial and timely gap with a voice option for their Microsoft 365 GCC High services and based on their experience assisting clients navigate the GCC High environment.


Set Up via CallTower Teams Connector App:

The CallTower Teams Voice Connector app allows CallTower to provision various aspects of MS Teams services for its customers. The app gives CallTower the necessary permissions to your tenant when running our provisioning scripts. To add the app to your tenant, you will need to be able to sign in with an account that has the Global Administrator role.

After clicking on the link to the app, you will be prompted to login to your administrator account.

a.You will then be presented with the list of permissions requested by the app. Each permission has a drop-down arrow allowing you to review what each permission provides access to.

b. After clicking “Accept” you will be redirected and may close the window.

The CallTower Teams Voice Connector app uses application permissions to provision the services. In order for CallTower to connect to customers’ tenants via the Microsoft Teams PowerShell module, the app will need to be given the “Teams Telephony Administrator” role. Documentation on this requirement can be found here.

a. Sign in to the Microsoft Entra admin or GCCH Entra admin

b. Browse to Entra ID > Roles & admins

c. Click “Roles and administrators”

d. Search for the “Teams Telephony Administrator” role and click on it anywhere under the red

line shown below. Please Note: clicking the checkbox on the screen below will not do anything,

be sure to click on the role name.

e. Select the role, then click “Add assignments”

f. Search for and select the app “CallTower Teams Voice Connector v2” or, “Calltower Teams

GCCH Voice Connector” for GCCH. Then click “Add”

GCC High Brochure
GCC High Brochure

MS Teams for GCC High Brochure