What replaced Skype for business calls?

Microsoft retired Skype on May 5, 2025, and directs users to Microsoft Teams. For organizations on Microsoft 365, Teams Phone adds real phone numbers, auto-attendants, and call queues to Teams.

Does ETTE sell phone service?

ETTE is not a phone carrier. We advise DC organizations on VoIP decisions and configure and manage Microsoft Teams Phone as part of Microsoft 365 management, including licensing and call-flow setup.

Is VoIP call quality good enough for an office?

It depends on your network more than the provider. Assess your internet connection and internal network first — that assessment is part of how ETTE scopes any phone project.

Business VoIP & Teams Phone, Washington DC

The phone landscape changed in 2025

Microsoft retired Skype on May 5, 2025, and steered users to Teams — a shift we covered in our Skype retirement guide. For DC organizations still carrying analog lines or an aging PBX, that retirement is a useful prompt: modern VoIP is cheaper, more flexible, and — if you already pay for Microsoft 365 — possibly already half-bought.

What to look for in a business VoIP system

Evaluate four things before any brand name: call quality on your actual internet connection (a site survey, not a promise); how numbers, auto-attendants, and hunt groups map to how your staff really answers calls; what happens when the internet drops; and the true per-user monthly cost including taxes, fees, and hardware. Consumer-grade services that look free or cheap rarely survive contact with an office — a trade-off we break down in our guide to free VoIP services.

Where Teams Phone fits

For organizations already on Microsoft 365, Teams Phone adds real phone numbers, auto-attendants, and call queues to the Teams client your staff uses all day. ETTE configures and manages Teams Phone as part of Microsoft 365 management — licensing, number porting coordination, call flows, and the security baseline around it.

Phones are an IT decision, not just a telecom one

Call quality depends on your network; security depends on your identity setup; cost depends on licensing you may already own. That's why phone decisions go better inside a managed IT relationship, where the same team owns the network, the tenant, and the support line. Questions about your setup? Talk with an advisor.

ETTE is headquartered at 5335 Wisconsin Ave. NW, Suite 440, Washington, DC 20015 — in Friendship Heights, with on-site coverage across the DC metro area and remote support nationwide. Call 202-345-1965 or send a message.

Common questions

: Microsoft retired Skype on May 5, 2025, and directs users to Microsoft Teams. For organizations on Microsoft 365, Teams Phone adds real phone numbers, auto-attendants, and call queues to Teams.
: ETTE is not a phone carrier. We advise DC organizations on VoIP decisions and configure and manage Microsoft Teams Phone as part of Microsoft 365 management, including licensing and call-flow setup.
: It depends on your network more than the provider. Assess your internet connection and internal network first — that assessment is part of how ETTE scopes any phone project.