Communicate Securely With Teams Phone

Microsoft Teams forGCC High

Start making and taking calls with Direct-Routed Teams Phone for GCC High environments. 

5.0 rating, 24/7 global support

HelloTeams GCC High Teams Phone deployment in 15 minutes.

Powering 27M+ minutes/month for 500+ companies, across 35+ regions worldwide

Process

Add Secure Communication to M365 GCC High

Implementation

HelloTeams’ automation technology means deployment takes weeks instead of months.

Adoption

Bespoke change management solutions make adopting Teams Phone easier than ever.

Support

With 24/7 priority support and an uptime of 99.99%, HelloTeams keeps you connected when you need it most.

HelloTeams GCC High Teams Phone deployment in 15 minutes.

Why HelloTeams

Faster Deployment.
A Fraction of the Cost.

Most Teams Direct Routing solutions for GCC High are complex, expensive, and time-consuming to deploy. They need specialist implementation, which carries human error risks, and can be costly to manage over time.

That’s why HelloTeams uses built-in automation to accelerate every part of the Microsoft Teams lifecycle — unlike legacy VoIP systems. Deployment for GCC High with HelloTeams takes, on average, one to two weeks – up to 10 times faster than the standard 12–24 weeks. And it’s more affordable, with a CapEx tag that’s, on average, up to 600% less than direct-routing solutions from other providers.

Most importantly, HelloTeams is backed by enterprise-grade security software, keeping your information flows compliant with standards like CMMC 2.0. Full number management is included — port existing numbers or request new GCC High-compliant ones.

Rated Excellent by Our Customers

Suitability

Designed for Defence Contractors

Microsoft Teams for GCC High is purpose-built for contractors with sensitive information flows. 

GCC High

What Is GCC High?

Office 365 Government Community Cloud (GCC) High is a cloud environment specifically designed for Department of Defence personnel. 

Its compliance and security requirements are much more comprehensive than commercial M365 environments. 

Specifically: 

  • GCC High Direct Routing services must comply with government-specific regulations and certifications, such as FedRAMP High, DoD SRG IL5, and CJIS. 
  • GCC High keeps all data within US boundaries. 
  • Service availability and update cadences may be vary based on each GCC High tenant’s infrastructure and security assessments.

Only organisations validated by Microsoft can establish a GCC High environment.

World-Class Support in 35+ Regions

HelloTeams GCC High Teams Phone deployment in 15 minutes.

Direct Routing is the only way to enable Teams Calling for GCC High.

With no native Microsoft option, choosing the right Direct Routing partner is key.

Deploy Microsoft Teams Phone for GCC High up to 10x faster with automation

Enhance Your GCC High Environment With HelloTeams

Implement Teams Phone Faster and More Affordably

HelloTeams uses built-in automation to deploy Teams Phone for GCC High up to 10X faster and 6X cheaper than other providers.

HelloTeams GCC High Teams Phone deployment in 15 minutes.

Eliminate Manual Deployment Risks and Human Error

Automated deployment means that human error risks to both implementation and security are eliminated.

HelloTeams GCC High Teams Phone deployment in 15 minutes.

Reduce OpEx Through Automation

HelloTeams’ automated functions reduce IT workload, lowering operational expenditure. So, you can do other important work.

HelloTeams GCC High Teams Phone deployment in 15 minutes.

Stay Connected With Continuous Support

24/7 priority support across more than 19 countries keeps you connected when you need it most, with an average uptime of 99.99%. Even if your partners operate internationally, GCC High ensures your Teams voice traffic stays within U.S. borders for compliance.

VoIP SIP trunk integration with Microsoft Teams Direct Routing

Operate With Defence-Grade Security

Microsoft Teams keeps your data safe with enterprise-grade security protocols. HelloTeams also uses AI-driven error detection to maximise performance.

Teams Phone Direct Routing international calling

500+ companies. 27M+ minutes every month.

HelloTeams GCC High Teams Phone deployment in 15 minutes.

Audioconferencing

Hold Audioconferences More Securely

Secure access to meetings shouldn’t be limited by internet connectivity. 

With HelloTeams, you can set up Direct-Routed audioconferencing, enabling secure Teams calls by dialling in from mobile or landline phones. Employees can also join meetings seamlessly from VoIP endpoints, ensuring flexibility without sacrificing compliance.

99.99% Uptime Guaranteed

The HelloTeams Advantage with GCC High

Mins/month
1 M+
Global customers
1 +
Uptime
1 %
Global regions
1 +

15-Minute Automated Deployment

Get up and running in 15 minutes—no coding or IT expertise required.

Seamless Integration & Migration

Easily port domestic or international numbers and connect Teams Phone via Direct Routing or Operator Connect.

Cost-Effective & Transparent Pricing

No setup fees, fully customizable plans, and a 14-day free trial—risk-free. Simple Teams Phone calling plans—domestic & international.

Enterprise-Grade Security & Reliability

Enjoy 99.99% uptime, global data centers, and built-in redundancy.

World-Class Support

24/7 expert support with personal onboarding and dedicated account managers.

Chosen by 500+ Companies

Clear calls. Flexible plans. Better value.

See why customers across 35+ regions choose HelloTeams

HelloTeams' Google reviews
Working with the HelloTeams team has been a fantastic experience — they’re skilled, quick to respond, and truly supportive.
Ali H
We switched to HelloTeams for Microsoft Teams phone numbers and couldn’t be happier — clear calls, reliable service, and great support.
Peter Taras
I received excellent assistance — prompt, professional, and very helpful.
Ron B
The support was top-notch, and I felt well taken care of throughout the migration process.
Mirza Khurram
We’ve been using HelloTeams for a year, and it’s been reliable, user-friendly, and well-supported.
Liz
Amazing customer service, easy setup, no hidden costs — been using them for a year now and everything is going great.
Waheed Gondal
Switching from Skype to telephony in Teams through HelloTeams has been an incredibly smooth transition with zero disruption.
C D
Amazing service by the crew at HelloTeams — they had us set up within 24 hours after Microsoft stopped Skype services.
Kushan Felix
HelloTeams has provided the perfect solution for our telephone needs in a timely and cost-effective manner.
L A Warren Lawyers

Trusted by 500+ Companies in 35+ Regions

FAQs

Questions About GCC High

Secure Teams Phone for US Government Compliance

Start here. Our experts will help you deploy Teams Phone for GCC High quickly and compliantly.

Services

*Note: Business use only, not for personal accounts.