BUSINESS VOICE / CHOOSING THE DEVICES
Teams, softphone or desk phone?
Choose by who answers.
The best answer is rarely one device for everyone. Match the receptionist, the warehouse, the hybrid staff and the meeting room to the way each one actually takes calls, then put them all on one call plan.
Help me chooseGeneral guidance, not a quote. Licensing, carrier service, devices and setup are scoped and itemized for each project.
A desk phone at reception, a softphone on a laptop, a cordless handset on the floor and a speakerphone in the meeting room.
THE OPTIONS, IN PLAIN TERMS
Six ways a business
can answer a call.
Microsoft Teams as the phone system
Teams Phone Standard is an add-on license that turns Teams into a hosted phone system with voicemail, transfers, auto attendants and call queues. To call regular numbers, each user also needs a connection to the public phone network: a Microsoft Calling Plan (also sold bundled as Teams Phone with Calling Plan), a carrier through Operator Connect, Teams Phone Mobile on a participating mobile carrier, or Direct Routing through a session border controller you or a partner run. Shared Calling lets users share an auto attendant’s number. Prices and bundles change, so confirm them on the day you buy.
An app on the computer or mobile
Most hosted phone systems, not only Teams, offer desktop and mobile apps. Staff answer the business number wherever they work, and nobody needs a handset on the desk. Quality depends on the headset, the computer and the network, and calls compete with everything else the device is doing.
A dedicated phone on the desk
A wired IP phone rings even when the computer is off, has physical buttons for transfer and hold, and can show line or colleague status. Many models are powered by the network cable. Check compatibility: Teams uses certified Teams phones, and Microsoft’s SIP Gateway supports a listed set of standard SIP phones with a narrower feature set.
Cordless handsets on a base station
DECT handsets talk to base stations on their own radio band instead of the Wi-Fi. They suit people who walk around a building and need a tough, simple handset with long battery life. Larger sites need several bases placed for handover between them. Some IP DECT systems connect to Teams through SIP Gateway.
Reception, lobby and break-room phones
A shared phone is not tied to one person. In Teams, a common area phone signs in with its own account and a Teams Shared Space license (formerly Teams Shared Devices), which includes the phone-system features; it still needs a calling connection. Other platforms handle shared phones in their own way.
Speakerphones and room systems
A small room may only need a certified speakerphone connected to a laptop. A room people book every day often deserves a dedicated room system with its own account. Teams Rooms has a free Basic license for up to 25 rooms and a paid Pro license with more management features.
WHERE EACH ONE FITS
Start with the person
and the place.
Reception and switchboard
A wired desk phone or attendant console with a corded or wireless headset. It should ring the moment the building opens, show who is free and transfer in one or two presses. Keep a softphone as a backup, not the only option.
People on the move
Rugged DECT handsets, or Wi-Fi handsets where the wireless network is designed for voice. Paging speakers can announce calls across a loud floor. Mobile softphones work for supervisors but drain batteries and depend on good coverage everywhere they walk.
Office some days, home others
A softphone on the laptop and mobile, with a good headset, follows them between home and office. Add a desk phone only if they share a hot desk or answer a lot of calls when in the office.
Sales, support and dispatch
Queues, wallboards, call recording and reporting matter more than the device. A quality headset is non-negotiable. Desk phones help agents who must keep answering while their computer is busy or restarting.
Calls you must keep
If you must record or retain calls, choose a platform and recording service built for it before choosing devices. Confirm what is captured, where recordings are stored, who can access them, how long they are kept and what consent your callers need.
Occasional callers
People who make a few calls a week may not need their own number at all. A softphone with a shared number, or simply being reachable through the main auto attendant, can be enough.
911 IS PART OF THE DESIGN
Every device must reach 911
and say where it is.
Two federal laws apply to multi-line telephone systems, the kind of system most businesses use. Under Kari’s Law, systems manufactured, sold or installed after February 16, 2020 must let anyone dial 911 directly, with no prefix such as 9, and must notify a central location where someone is likely to see or hear it, such as a front desk, a security screen, a text message or an email, when a 911 call is made. Installers, managers and operators of the system share responsibility for this configuration.
Under Section 506 of RAY BAUM’S Act, the FCC requires a dispatchable location to be sent with 911 calls: a validated street address plus the floor, suite or similar detail responders need. Fixed on-premises phones had to send it automatically from January 6, 2021. From January 6, 2022, on-premises non-fixed devices and off-premises devices, which includes softphones and remote workers, must send an automated dispatchable location when technically feasible, or else a location the user updates or the best available alternative location (FCC, MLTS 911 requirements).
Fixed devices
Register a validated address and a place, such as a floor or suite, for each fixed phone or its network location. Update it whenever a phone moves.
Devices that move
Teams, for example, supports registered emergency addresses, dynamic emergency calling based on the network location of the client, location sharing for people working from home and security desk notification. Other platforms have their own equivalents. Map them before go-live.
Check that 911 dials without a prefix from every type of device, that the notification reaches someone who will act on it, and that each location is correct. Teams, for example, recognizes 933 as an emergency test number; ask your provider what test method it supports. This is general information, not legal advice.
AUDIO QUALITY + NETWORK
Good calls are mostly
a network decision.
Put voice first
Voice uses little bandwidth but is sensitive to delay, jitter and packet loss. Microsoft recommends quality of service on every managed segment of the network, and a firewall with fair-queuing traffic shaping can keep calls clear while large uploads run.
Wire what does not move
Reception, desk and conference phones belong on a cable. For Wi-Fi calling, prioritize voice with Wi-Fi Multimedia (WMM), prefer the 5 GHz band, steer capable devices to it and avoid neighboring access points on overlapping channels.
Keep calls off the VPN when you can
Sending call audio through a remote-access VPN can add delay and distance. Microsoft recommends a split-tunnel VPN so Teams media goes directly to the service. Apply the same thinking to other hosted platforms.
The cheapest quality upgrade
A laptop microphone in an open office is the most common cause of poor softphone audio. Choose headsets certified for your platform, with noise-cancelling microphones for busy rooms and wireless models for people who stand up while talking.
Power over Ethernet and backup
Most desk phones draw power from a PoE switch. Check the switch’s total power budget, and put the switch, firewall and internet equipment on a battery backup sized for how long phones must work in an outage.
A voice VLAN where it helps
A separate network segment for phones makes priority rules, troubleshooting and security simpler, and it can carry location information that some phones use for 911.
THREE-YEAR COST
Compare the whole
36 months.
Recurring every month
The base Microsoft 365 or phone-platform plan for each user, any calling add-on such as Teams Phone, the calling connection or carrier charges, licenses for shared phones and meeting rooms, extra numbers, toll-free minutes, international calling, recording or compliance services, and support. Multiply by users and by 36, and ask how renewal prices are set.
Bought once, replaced eventually
Desk phones, DECT bases and handsets, conference devices and headsets, PoE switches or injectors, battery backup, Wi-Fi improvements and, for Direct Routing, a session border controller or a hosted one. Add setup labor, number porting, 911 configuration, testing and training. Headsets and handset batteries tend to need replacing first.
MIXING + MIGRATING
Mix devices on one plan.
Retire copper on purpose.
A mixed setup is normal: softphones for office and hybrid staff, desk phones at reception and on call-heavy desks, cordless or Wi-Fi handsets on the floor, and room devices in meeting spaces. What makes it work is one number plan, one routing design and one 911 design, tested from every device type. If you start with Teams, you can add a different calling connection later or use more than one; Microsoft allows several in the same organization.
If your business still has copper landlines, carriers in Georgia and Texas are retiring them. Our landline retirement guide explains the filed dates and what quietly depends on those lines, and the free landline retirement checker builds a line-by-line checklist. Port your numbers before the old service ends, and leave fire alarm and elevator lines to their licensed service companies. For the call flow itself, see our business phone system planning guide.
COMMON QUESTIONS
Short answers to
common questions.
Do we still need desk phones if everyone has Teams?
Not for everyone. People who work mostly at a computer with a good headset often do well with a softphone. Reception, shared spaces, shop floors and anyone who answers many calls a day usually benefit from a dedicated device that rings reliably and works when the computer is off or busy.
What does Microsoft Teams need before it can make and receive regular phone calls?
Each calling user needs a Teams Phone license on top of a Microsoft 365 or Teams plan that supports it, plus a way to reach the public phone network: a Microsoft Calling Plan, an Operator Connect carrier, Teams Phone Mobile or Direct Routing through a session border controller. Shared phones and meeting rooms use their own device licenses.
Are softphones and remote workers covered by the 911 rules?
Under the FCC rules for multi-line telephone systems, non-fixed and off-premises devices must provide an automated dispatchable location when technically feasible, or else a location the user updates or the best available alternative location. Plan how each softphone and remote worker will report a usable location before go-live.
Is Wi-Fi good enough for business calls?
It can be, if the Wi-Fi is planned for voice. Use the 5 GHz band where possible, prioritize voice traffic, place access points so calls do not drop while people move, and keep wired connections for reception and other fixed phones.
Can we mix Teams, desk phones and cordless handsets in one system?
Usually, yes. Many businesses give office staff a softphone, put a desk phone at reception, use cordless or Wi-Fi handsets on the floor and equip meeting rooms separately. The key is one numbering and call-routing plan, with every device tested for transfers, voicemail and 911.
SOURCES
Checked
October 6, 2026.
FCC, Multi-line Telephone Systems: Kari’s Law and RAY BAUM’S Act sets out direct dialing, notification and dispatchable-location requirements and their compliance dates. Microsoft Learn describes Teams add-on licenses, including Teams Phone Standard, Calling Plans, Teams Shared Space and Teams Rooms; PSTN connectivity options; emergency calling; SIP Gateway for compatible SIP and DECT devices; common area phones; and network preparation, including quality of service, Wi-Fi and split-tunnel VPN guidance.
UrbanBytez designs, builds and supports business phone systems, firewalls, custom apps and custom DNS/DHCP, working remotely with businesses across the United States. An inquiry is free. A $295 technology assessment can review how your business answers calls today. Phone projects receive a tailored, itemized quotation covering licensing, carrier service, devices and setup.
You can also email sales@urbanbytezllc.com or call (770) 904-1800. Do not send passwords, account PINs or customer records.