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UCaaS Solutions

Maximize your unified communications with our voice, contact center productivity, and network support

UCaaS Solutions Interactive Coverage Map Global Enterprise Voice Solutions

Microsoft Solutions

All Microsoft Solutions Operator Connect GCC High Teams Direct Routing Direct Routing

Webex by Cisco

Cisco Collaboration Webex Calling Webex Dedicated Instance

Zoom

Zoom Calling Zoom Phone
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Key Integrations

Connect with anyone, anywhere, inside or outside your organization, from a single, dedicated geographic number

Key Integrations
Dynamic E-911
Microsoft 365
MS Teams Premium
Webex Go
Teams Mobile
CT Analytics for MS Teams
CT Analytics for Webex by Cisco
Microsoft Copilot
Phonism (Migration Device Software)
Spam Blocking Powered by Mutare
CT Unite (CRM Integration)
CT SIP
CT Text for Teams
CT Text for Webex
One Click Failover
CT Recording
CT Fax
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CX / CCaaS

Empower meaningful customer connections and drive real outcomes with our Customer Experience (CX) and Contact Center solutions.

CX Solutions Conversational AI CallTower AI Contact Center Support Services Contact Center Professional Services Consulting Services

CCaaS Platforms

CCaaS Solutions
Five9 Contact Center
Genesys Cloud
Webex Contact Center
Ascend Teams Contact Center
CT Contact Center
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CallTower Connect

A Revolutionary tool enabling users to easily personalize and control their CallTower Services

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Solutions Center

Discover a comprehensive Solutions Center hub with resources, documentation, and expert guidance for all your business communication needs.
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24/7/365 Support

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

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

Monitor live system performance updates and network health metrics to ensure optimal communication service delivery across all platforms.
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Client Support Plan
Detailed service overview and support structure

Explore the Client Support Plan for a detailed overview of our services, ensuring tailored assistance and enhanced support for your unique needs.
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Support Escalation Path

Technical support escalation for critical issues
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Implementation Escalation Path

Project implementation and deployment issues
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Sales Escalation Path

Sales inquiries and contract negotiations
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Billing Escalation Path

Billing disputes and account management
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Client Success Escalation Path

Strategic account growth and optimization

Company & Learning

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About Us

Explore the overview of our company, mission, and commitment to delivering innovative communication solutions.
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CallTower Training

Comprehensive resources and guidance to enhance your proficiency in utilizing our communication solutions.
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Webinars

Visit insightful sessions, industry expertise, and the latest updates on our communication solutions.

Support & Billing

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FAQs

Browse the FAQ webpage for quick answers to common questions about our products and services.
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Bill Center

Explore for a streamlined experience managing and understanding your invoices and billing information.
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CallTower, Inc. Terms of Use

Review CallTower's Terms of Use to understand your rights, responsibilities, and guidelines for using our services.

Service & Compliance

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Services Level Agreement

Details on CallTower's Customer SLA, including scheduled maintenance windows for solution updates.
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Customer Proprietary Network

Explore the Customer Proprietary Network webpage for secure and customized communication solutions.
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Billing questions, payments, disputes

Find essential information about billing inquiries, payment terms, and dispute resolution for your account.

Privacy & Legal

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Privacy Policy and Notice

Review the information on how we safeguard your personal data, ensuring transparency in our services.
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California Consumer Privacy Act

Check out how we comply with CCPA regulations, prioritizing the protection of consumer privacy.
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Partner Program

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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Partner Portal

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

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Agency Program

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

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MSP Program

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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Operator Connect for Microsoft Teams

CallTower is globally recognized by Microsoft as a top-tier Operator Connect partner, delivering world-class communications with unmatched expertise and reliability.

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MS Teams Operator Connect

The CallTower Advantage: Experience You Can Trust

Operator Connect for Microsoft Teams offers a path to reliable, cost-effective voice calling. As one of the very first providers to partner with Microsoft for the launch of Operator Connect, CallTower brings a depth of expertise, a legacy of trust, and a suite of certifications that few can match. Here is why CallTower stands alone as the premier choice for organizations ready to maximize their investment in Microsoft Teams.

When you choose CallTower, you are choosing a partner recognized by Microsoft as a top-tier global provider. Our relationship with Microsoft is not new; it is a longstanding collaboration built on years of delivering excellence.

MS Teams Verticals
Opertor Connect Mockup

Why our history matters:

First-Mover Expertise:

We were among the initial group of Operators selected by Microsoft to launch Operator Connect. We know the platform inside and out because we helped define the standard.

Elite-Level Certification:

Our deep bench of Microsoft certifications and designations validates our technical proficiency and commitment to quality. CallTower is a Microsoft Solutions Partner – Modern Work Designation.

Proven Reliability

Our tenure in the industry means we have refined our infrastructure to deliver unparalleled uptime and call quality.

Global Reach, Consolidated Costs

For multinational organizations, managing telecom contracts across borders is a logistical nightmare. Different providers, different regulations, and different bills create inefficiency.

CallTower simplifies the global picture:

One Vendor, One Bill

Replace dozens of local telco contracts with a single global solution.

Global Administration

Manage your telephony footprint across multiple countries from one central portal.

Reduced Overhead

Free your procurement and IT teams from juggling multiple carrier relationships.

Total Visibility

Gain a unified view of your global spend to identify optimization opportunities.

Powerful Integrations: Beyond the Basic Dial Tone

We don’t just provide a connection; we provide a complete communication ecosystem. CallTower enhances the Operator Connect experience with critical integrations and features that drive value.

Contact Center Solutions

Seamlessly integrate with industry-leading Contact Center as a Service (CCaaS) platforms like Five9 and Genesys for superior customer engagement.

SMS/MMS Text

Send and receive SMS & MMS messages from MS Teams with contacts in Outlook, Active Directory, SharePoint and with your MS Teams channel members.

CRM Integration

Connect your voice data with CRM platforms like Salesforce to boost sales productivity and customer insights.

Compliant Recording

Utilize integrated Call Recording for compliance, training, and quality assurance.

E911 Emergency Services

Ensure safety and regulatory compliance with robust emergency service capabilities.

Teams Mobile

Streamline operations by replacing desk phones and company mobiles with Teams Mobile eSIM technology.

Extensive Connectivity

Benefit from 16 global data centers for voice-optimized connectivity worldwide.

By choosing CallTower for Operator Connect, you aren’t just buying a voice service. You are securing a strategic partnership with a Microsoft-certified leader. We deliver the operational efficiencies, global scalability, and specialized integrations necessary to future-proof your business communications.

Unrivaled Support for Uninterrupted Operations

Downtime is a revenue killer. Communication failures frustrate customers and stall productivity. At CallTower, we believe support should be proactive, not reactive.

 

Our Operator Connect support structure ensures:

24/7/365 Assistance:

We provide comprehensive technical support around the clock.

Unified Support Framework

Through our shared Service Level Agreements (SLAs) with Microsoft, we eliminate the finger-pointing that often happens between software vendors and network carriers.

Dedicated Expertise

Our team manages the complexities of your voice services, freeing your IT staff from troubleshooting telephony issues so they can focus on strategic growth.

Streamlined Operations & Maximum ROI

Operator Connect is designed for simplicity. CallTower takes that simplicity and turns it into measurable operational efficiency and Return on Investment (ROI).

Simplified Deployment and Management

Speed is a competitive advantage. With CallTower, you can bypass the lengthy delays of traditional telecom.

Rapid Provisioning

  • Assign phone numbers and provision services in minutes directly from the Microsoft Teams Admin Center.

Reduced IT Workload

  • Drastically cut the administrative hours needed to manage your phone system.

Faster Onboarding

  • Equip new employees with full voice capabilities instantly, ensuring productivity from day one.

Centralized Control

  • Manage your entire communication stack - both collaboration and voice from a single, intuitive interface.

Enhanced Reliability & Reduced CapEx

Reliability is the bedrock of business. By leveraging direct peering powered by Azure, we establish a one-to-one network connection that guarantees superior call quality.

Zero Hardware Costs

Eliminate the need to purchase, maintain, or replace on-premise equipment like Session Border Controllers (SBCs).

Predictable OpEx

Shift to a transparent, subscription-based model that simplifies budgeting.

Increased Uptime

Protect revenue and customer relationships with a network designed for resilience.

Testimonials

"Easy-to-Use Portal with Smooth Routing to Teams"
George F. - Mgr. Technology and Innovatioin Enterprise (> 1000 emp.)
"Seamless Teams Integration with Enterprise-Grade Reliability"
Verified User in Public Safety - Mid-Market (51-1000 emp.)
"Seamless Teams integration with excellent call quality and support."
Michael A. - Chief Technology Officer - Mid-Market (51-1000 emp.)
"Great Product/Great People"
Ronda W. - Mid-Market (51-1000 emp.)

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CallTower Secures Top Spot as 2025 North American UCaaS Leader on Frost Radar

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CallTower Continues to Expand its In-Country Global Connectivity with Operator Connect for Microsoft Teams

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CallTower Named the Most Trusted Microsoft Solution Provider of 2024 by Insights Success Magazine

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Learn More: Operator Connect vs. Direct Routing

Not sure if Operator Connect is the right fit for your business? Explore the differences between Operator Connect and Direct Routing in our comprehensive guide. Download the PDF here to make an informed decision.
Microsoft Teams Operator Connect
Microsoft Teams Operator Connect

MS Teams Operator Connect

Quick Links MS Teams Webex Zoom