UCaaS Solutions
Maximize your unified communications with our voice, contact center productivity, and network support
Microsoft Solutions
All Microsoft Solutions Operator Connect GCC High Teams Direct Routing Direct Routing
Key Integrations
Connect with anyone, anywhere, inside or outside your organization, from a single, dedicated geographic number
CX / CCaaS
Empower meaningful customer connections and drive real outcomes with our Customer Experience (CX) and Contact Center solutions.
CallTower Connect
A Revolutionary tool enabling users to easily personalize and control their CallTower Services
Solutions Center
Discover a comprehensive Solutions Center hub with resources, documentation, and expert guidance for all your business communication needs.
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.
Updates & Notifications
Stay informed with real-time service updates, maintenance alerts, and important system notifications to keep your business running smoothly.
Network Status
Monitor live system performance updates and network health metrics to ensure optimal communication service delivery across all platforms.
Support Escalation Path
Technical support escalation for critical issues
Implementation Escalation Path
Project implementation and deployment issues
Sales Escalation Path
Sales inquiries and contract negotiations
Billing Escalation Path
Billing disputes and account management
Client Success Escalation Path
Strategic account growth and optimization
Company & Learning
About Us
Explore the overview of our company, mission, and commitment to delivering innovative communication solutions.
CallTower Training
Comprehensive resources and guidance to enhance your proficiency in utilizing our communication solutions.
Webinars
Visit insightful sessions, industry expertise, and the latest updates on our communication solutions.
Support & Billing
FAQs
Browse the FAQ webpage for quick answers to common questions about our products and services.
Bill Center
Explore for a streamlined experience managing and understanding your invoices and billing information.
CallTower, Inc. Terms of Use
Review CallTower's Terms of Use to understand your rights, responsibilities, and guidelines for using our services.
Service & Compliance
Services Level Agreement
Details on CallTower's Customer SLA, including scheduled maintenance windows for solution updates.
Customer Proprietary Network
Explore the Customer Proprietary Network webpage for secure and customized communication solutions.
Billing questions, payments, disputes
Find essential information about billing inquiries, payment terms, and dispute resolution for your account.
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.
Partner Portal
At CallTower, we consider our channel partners as family, valuing successful relationships through excellent support and financial rewards.
Agency Program
Discover Are benefits of our Agency Partner Program for your business. Unlock revenue streams, scalable growth, and extensive support.
MSP Program
CallTower's MSP Partner Program empowers service providers by simplifying taxation and enhancing efficiency through tools including the GTx self-service platform.
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.
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.
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, specializing in Modern Work – Calling for Microsoft Teams.
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.
Seamlessly integrate with industry-leading Contact Center as a Service (CCaaS) platforms like Five9 and Genesys for superior customer engagement.
Send and receive SMS & MMS messages from MS Teams with contacts in Outlook, Active Directory, SharePoint and with your MS Teams channel members.
Connect your voice data with CRM platforms like Salesforce to boost sales productivity and customer insights.
Utilize integrated Call Recording for compliance, training, and quality assurance.
Ensure safety and regulatory compliance with robust emergency service capabilities.
Streamline operations by replacing desk phones and company mobiles with Teams Mobile eSIM technology.
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.
CallTower Secures Top Spot as 2025 North American UCaaS Leader on Frost Radar
CallTower Continues to Expand its In-Country Global Connectivity with Operator Connect for Microsoft Teams
CallTower Named the Most Trusted Microsoft Solution Provider of 2024 by Insights Success Magazine
Learn More: Operator Connect vs. Direct Routing
