Webex vs Microsoft Teams: Meetings, Calling, Devices

Webex vs. Teams usually comes down to your Microsoft 365 posture. If your organization already pays for Microsoft 365 E3 or E5 licensing, Teams is effectively bundled in and wins on cost and inertia — it's already inside Outlook, SharePoint, and OneDrive, and most staff have used it. Webex wins where Teams is weaker: purpose-built meeting and room hardware, calling maturity for organizations that need a real cloud or hybrid PBX, and a security posture that integrates natively with a Cisco network and identity stack. Neither claim is close — Teams' M365 bundling advantage is as real as Webex's device and calling advantage. The right choice depends on which one matters more in your environment, and most IT teams that search this comparison already have a hunch about the answer before they start reading.

At a glance

Why Teams wins on bundling

Teams' advantage isn't a feature — it's economics and inertia. If you're already licensed for Microsoft 365 E3 or E5, Teams meetings and chat are included, the client is already installed for most knowledge workers, and IT doesn't have to justify a second collaboration budget line. Microsoft has also pushed Copilot and other AI features deeper into the Teams experience specifically because it sits inside the same tenant as Outlook, Word, and Excel — an integration advantage that's structurally hard for an outside platform to match, since it depends on owning the whole productivity suite, not just the meetings app. Teams Phone, the calling piece, is a separate add-on with its own licensing, so the "Teams is free" argument fully holds for meetings and chat but not for cloud PBX. For an organization with no strong Cisco relationship and a Microsoft-centric IT stack, this bundling advantage is difficult for any competitor — Webex included — to argue against on cost alone.

Where Webex pulls ahead: devices and room hardware

Microsoft doesn't manufacture meeting-room hardware; it certifies devices from partners under the Microsoft Teams Rooms program. Cisco builds its own Room Series and Desk Series line specifically for Webex, and — notably — Cisco also sells Room Series hardware certified to run as Microsoft Teams Rooms devices, so the hardware decision and the software-platform decision don't have to be the same decision. For an IT team standardizing conference rooms, buying Cisco-built devices means one vendor for firmware updates, security patching, and support regardless of which meeting platform ends up as the primary client. That matters operationally: a fragmented room-hardware fleet from several certified partners means several separate firmware release cycles, several support portals, and several sets of end-of-life dates to track, where a single-vendor Cisco fleet collapses all of that into one relationship. Size a room refresh in the catalog or view current Cisco collaboration hardware.

Calling: Webex Calling vs Teams Phone

Cloud calling is the sharpest divide between the two platforms. Webex Calling carries Cisco's multi-decade telephony engineering forward — the same lineage as Cisco Unified Communications Manager — with mature hybrid options for organizations migrating off on-prem CUCM at their own pace, and cloud PSTN available directly from Cisco in a growing list of countries, with SIP trunking available to fill in coverage elsewhere. Teams Phone is a capable, fast-growing cloud PBX, but it requires its own licensing on top of core M365 plans, plus a separate PSTN connectivity decision — Calling Plans, Operator Connect, or Direct Routing through a third-party carrier, each with different setup and carrier-relationship overhead. Cisco desk phones, the 8800 series and related models, are qualified at the family level to operate in both worlds: natively with Webex Calling and CUCM, and via SIP/Direct Routing or Teams-certified firmware in Microsoft-calling environments, so a hardware refresh doesn't have to lock you into one platform's roadmap. Compare current desk phone models in the catalog.

Security and compliance

Both ecosystems are enterprise-grade on security, and the honest differentiator is integration depth with what you already run, not a raw feature gap. Teams inherits Microsoft Entra ID for identity, Purview for compliance and eDiscovery, and Defender for security — a strong story for a Microsoft-centric security team, especially one that already runs eDiscovery holds and retention policies through Purview for email and files and wants chat and calling records captured under the same policy engine. Webex integrates natively with Cisco Duo (MFA), Umbrella (DNS-layer security), and ISE (network access control), which matters if your network and endpoint security already run on Cisco. Government and regulated buyers should note that Microsoft Teams (via GCC/GCC High) and Webex for Government both operate FedRAMP-authorized environments at the family/package level — confirm the specific authorization and impact level your agency requires rather than assuming parity across every tier.

Which should you choose?

This is less "better tool" and more "which ecosystem are you already committed to."

• You're already licensed for Microsoft 365 E3/E5 and want meetings and chat with no new procurement. Teams fits.
• Your security team standardizes on Microsoft Entra ID, Purview, and Defender. Teams fits.
• Deep Outlook, SharePoint, and OneDrive integration matters more than device choice. Teams fits.

• You run Cisco phones, switches, or security tools and want fewer vendors across network, security, and collaboration. Webex fits.
• Calling is a first-class requirement, especially migrating off on-prem CUCM. Webex fits.
• You're refreshing conference rooms and want Cisco-built hardware with one support chain, regardless of which client ultimately runs in the room. Webex fits.
• You want a neutral meetings platform that isn't tied to a single office-suite vendor. Webex fits.