Top Microsoft Teams Phone Alternatives for IT Leaders

Microsoft Teams Phone is a cloud-based phone system that enhances the Microsoft Teams collaboration platform with PBX capabilities. It supports essential business communication functions such as internal and external calls, voicemail, call forwarding, auto attendants, call queues, and caller ID. However, it is not a standalone carrier service—organizations must also select how to connect to the public switched telephone network (PSTN).

This guide is intended for IT leaders, business decision-makers, and operations managers evaluating cloud-based phone systems. Choosing the right phone system impacts business communication, customer experience, and operational efficiency. The best alternative to Microsoft Teams depends on the specific needs of the organization.

This layered structure often leads organizations to seek a Microsoft Teams Phone alternative. Some desire a comprehensive phone system that includes business texting, advanced call handling, CRM integration, and workflow automation all within a unified platform. Others prefer to keep the Teams app for collaboration but want to move carrier services, call routing, and telephony support to a third-party provider through Direct Routing.

Why Businesses Look for Alternatives

Microsoft Teams Phone is indefinitely connected to Microsoft 365, making it ideal for organizations committed to Microsoft Teams Phone that requires multiple components to function fully, including PSTN connectivity options such as Calling Plans, Operator Connect, Teams Phone Mobile, or Direct Routing.

Managing Teams Phone requires additional configurations such as number porting, emergency location management, call recording, analytics, and support processes.

Microsoft Teams can increase costs and administration due to multiple licenses and services, complicating procurement and support.

Microsoft Calling Plans use Microsoft as the PSTN service provider. Operator Connect uses a participating carrier. Direct Routing lets an organization bring its preferred carrier through a certified session border controller, while Teams Phone Mobile integrates a participating mobile provider with Teams calling. Each path changes responsibility for service availability, number management, support, pricing, and call quality.

Top Microsoft Teams Phone Alternatives

Unified communication solutions include team communication and cloud phone services.

Nextiva: Best All-in-One Phone System

Nextiva is a leading Microsoft Teams Phone alternative for organizations that need a full business phone system rather than a Microsoft add-on. It combines cloud voice, business texting, video meetings, instant messaging, call routing, CRM integration, and customer communication tools in a unified platform.

The service is designed for enabling organizations to manage phone calls from desk phones, mobile phones, and a mobile app while maintaining a consistent business identity. This is particularly useful for remote teams and field employees who treat a smartphone as their primary business device or phone mobile endpoint.

Nextiva business voice plans start at $15 per user month. The platform includes business calling and texting, and it delivers a 99.999% uptime across eight points of presence. For IT buyers, this is relevant because uptime claims should be assessed alongside redundancy architecture, multiple regions, incident communication practices, and the provider’s service-level terms.

Nextiva is well suited to businesses that need advanced call handling, including call forwarding, auto attendants, routing calls by schedule or department, call queues, shared voicemail, and customer-facing call management. The goal is not merely to connect calls; it is to ensure callers reach the appropriate department without creating additional administrative overhead.

Zoom Phone: Best for Video-Heavy Organizations

Zoom Phone is a suitable Microsoft Teams Phone alternative for companies already centered on Zoom for video conferencing, HD video meetings, screen sharing, and team collaboration. It offers a user-friendly interface that keeps communication channels such as phone calls, video calls, chat, and fax in a closely connected environment.

It can be a strong phone system for organizations that prioritize video calls and collaboration tools. However, businesses operating busy call centers should examine how the platform handles advanced analytics, queue performance, supervisor controls, quality management, CRM integration, web chat, and workflow automation before choosing it as the primary customer-communication environment.

Google Voice: Best for Google Workspace Users

Google Voice is a simple business phone system for small teams that already rely on Google Workspace. It provides a business number, basic calling, texting, and administrative controls within the Google environment.

Google Voice plans begin at $10 per user month, while higher tiers add features such as automated attendants, ring groups, call queues, eDiscovery, call recording, reporting, and international capabilities. It is a logical choice for small businesses that want an accessible phone system aligned with Google Workspace rather than the Microsoft ecosystem.

Full Replacement vs. Direct Routing

The choice between replacing Microsoft Teams Phone and retaining it depends on how central Microsoft Teams is to everyday work.

Replace Teams Phone Completely

A complete replacement is often best when phone calls are central to customer acquisition, service delivery, scheduling, intake, or support. Examples include multi-site service businesses, professional services organizations, retail operators, franchise networks, and companies with customer-facing sales teams.

A cloud based phone system can centralize business tools that otherwise sit across separate products: call forwarding, IVR, routing calls, SMS follow-up, call recording, advanced analytics, customer records, web chat, and workflow automation.

Keep Teams with Direct Routing

Direct Routing is the better option when Microsoft Teams is embedded in employee workflows and the organization wants a seamless integration rather than a full interface change. Microsoft Direct Routing connects a supported session border controller to Microsoft Teams Phone, allowing a company to use another carrier for PSTN access.

This approach can give IT teams more flexibility than Microsoft Calling Plans. It may be useful where businesses need a certain service provider, operate across multiple regions, have specialized devices, require carrier-negotiated terms, or want more control over network design.

Nextiva’s Microsoft Teams integration uses Direct Routing to bring Nextiva-powered calling into the Teams app. Employees can make and receive phone calls in Microsoft Teams while the organization uses Nextiva for telephony services, call routing, and related capabilities.

How to Choose the Right Alternative

Scope Out the True Cost

Compare the total cost of ownership over at least 36 months, not simply the advertised per user rate. Consider the following cost factors:

• Microsoft 365 licensing
• Teams Phone Standard
• Microsoft Calling Plans or other connectivity
• Carrier fees
• Number porting
• Devices
• Implementation
• Support
• Recording

A lower seat price does not automatically equal lower operating cost. For example, a platform with a higher monthly price may reduce administrative time, eliminate overlapping business tools, improve call quality, or remove the need to maintain separate telephony infrastructure.

Evaluate Business Workflows

Run a pilot that tests actual business conditions. Include the following workflow test items:

• Internal calls
• Inbound phone calls
• Outbound calls
• Transfers between mobile phones and desk phones
• Call forwarding
• After-hours rules
• Holiday schedules
• Call queues
• Remote-team support
• CRM integration
• Escalation procedures

Also test occasional call quality issues under real network conditions. Measure call quality from headquarters, home offices, Wi-Fi, cellular networks, and remote locations. Ensure the provider can document how it monitors quality, resolves incidents, and supports users when connectivity problems involve the local network rather than the cloud service.

Frequently Asked Questions

What is the best alternative to Microsoft Teams Phone?

Nextiva is one of the best Microsoft Teams alternatives for businesses that need a full cloud based phone system, strong business communication features, SMS, advanced call handling, CRM integration, and customer workflows. Zoom Phone is a compelling option for video-first organizations, Dialpad fits AI-focused sales teams and support teams, and Google Voice works well for simple Google Workspace deployments. The best alternative to Microsoft Teams depends on the specific needs of the organization.

Is Microsoft Teams Phone included in Microsoft 365?

Microsoft Teams Phone is not automatically included with all Microsoft 365 subscriptions. Teams Phone Standard is generally an add-on license that provides PBX features. Businesses also need a PSTN connectivity choice—Microsoft Calling Plans, Operator Connect, Teams Phone Mobile, or Direct Routing—to manage phone calls to external numbers.

Can standard SIP desk phones work with Microsoft Teams Phone?

Microsoft Teams Phone commonly uses Teams-certified desk phones or supported SIP Gateway configurations. By comparison, many standalone UCaaS systems support a wider choice of SIP devices. Before reusing existing hardware, validate device compatibility, provisioning, security, call quality, emergency calling behavior, and support coverage.

Does Zoom Phone work as a direct replacement for Teams Phone?

Yes. Zoom Phone can replace Teams Phone when a business prefers Zoom’s unified collaboration platform for video conferencing, video calls, phone calls, and messaging. It is a practical choice for organizations that prioritize Zoom video meetings, but customer-service teams should compare its call centers and contact center capabilities with a platform built around customer experience.