Glossary

What is a softphone?

A softphone is a software application that turns a computer, laptop, smartphone, or tablet into a fully functional phone endpoint. It makes and receives calls over VoIP, replacing or supplementing physical desk phones. Softphones include features that desk phones can’t, integrated CRM screen pops, AI transcription, video meetings, team chat, and contact search, while working from anywhere with an internet connection. They are the default phone endpoint in most modern cloud phone deployments.

How a softphone works

Install the softphone app on a device (Mac, Windows, iOS, Android, or web browser)
Log in with your business credentials
App registers with the VoIP provider’s signaling server
Incoming calls ring through the app
Outgoing calls use the device’s microphone and speakers (or connected headset)
Calls travel as VoIP traffic over the internet

The user experience: like any messaging app, but for voice, video, and messaging combined.

Softphone vs. desk phone

Dimension	Desk Phone (IP Phone)	Softphone
Hardware	Physical device, $100–$500+	Software on existing device
Setup	Per-desk configuration	Install app, log in
Cost per user	Hardware + VoIP subscription	VoIP subscription only
Mobility	Tied to desk	Works anywhere
AI features	Limited (depends on device)	Full, transcription, summaries, drafting
Call quality	Dedicated audio hardware	Depends on headset and network
Emergency power	Can have local power	Depends on device battery
Cabling	Ethernet PoE	None (WiFi or cellular)

Most modern businesses use softphones by default, with desk phones reserved for specific needs (receptionists, legacy integrations, call centers with specific hardware requirements).

When to use softphones

Remote or hybrid teams: the phone follows the person, not the desk
Knowledge workers: who already work on a computer all day
Startups and small businesses: no capital expense for desk phones
Mobile-heavy roles: field sales, consultants, healthcare providers
Contact centers with integrated agent desktops
Microsoft Teams shops using Teams integration

When desk phones still make sense

Reception areas: physical appearance of a phone matters
Conference rooms: dedicated room phones for speakerphone use
Warehouses and retail: non-computer workers
Healthcare patient rooms: regulated hospital environments
Some executive offices: preference-driven

DialPhone supports both. Most customers run 90%+ softphone + a few desk phones for specific use cases.

Softphone features

Beyond basic calling, modern softphones include:

AI transcription: live call transcription with speaker identification
AI summaries: automatic post-call summary with action items
CRM integration: click-to-dial, screen pop on inbound, activity logging
Contact search: unified directory with presence
Voicemail with transcription: read voicemails as text
Call recording: compliance-safe recording with transcript
Video meetings: integrated video conferencing
Team messaging: chat alongside voice
Business SMS: text from business number
Do Not Disturb: schedule-based DND without turning off the app
Multiple lines / accounts: handle personal + business, or multi-brand deployments
Number masking: hide personal cell number from customers
Bluetooth headset integration: work with any Bluetooth headset
Call transfer, hold, park, conference: full PBX feature set

Softphone call quality

Softphone call quality depends on:

Network connection: bandwidth and latency to the VoIP provider
Headset quality: the single biggest quality factor. Laptop built-in mics are noisy; good headsets sound better than most desk phones.
Codec selection: the provider’s codec choice and adaptive bitrate
CPU load: under heavy load, real-time audio can stutter
Network prioritization: QoS rules can prioritize VoIP traffic on LAN/WAN

For most knowledge workers on reasonable internet, a $100 Bluetooth or USB headset plus a well-architected provider (DialPhone) delivers better call quality than most desk phones.

Softphone and E911

Softphones complicate E911 compliance because the user can be anywhere. Requirements:

Softphone app must collect and update the user’s physical location
Location must be “dispatchable” (street + floor/suite when applicable)
Location must be passed to 911 dispatch

DialPhone’s softphone prompts users to confirm location at login and when the device moves. For remote workers, this means keeping their registered address current.

Softphone security

Best practices:

Encryption in transit: TLS for signaling, SRTP for media (AES-256)
Authentication: SSO via SAML or OIDC; hardware MFA where available
Device management: MDM enrollment for corporate devices; conditional access for BYOD
Data-at-rest encryption: call recordings, voicemails encrypted at rest
Account takeover protection: DialPhone alerts on unusual sign-ins

DialPhone’s softphone ships with all these as defaults.

BYOD vs. corporate device

Most softphones support both personal devices (BYOD) and corporate-managed devices:

Corporate-managed: pushed via MDM, policies enforced, remote wipe available
BYOD: user installs voluntarily, policies enforced via conditional access, sandbox containers keep business data separate

DialPhone works on both. For BYOD, number masking keeps the user’s personal cell private when they call customers.

Softphone platforms

DialPhone supports:

iOS: iPhone and iPad native apps
Android: native app
macOS: native desktop app
Windows: native desktop app
Web: browser-based client (Chrome, Safari, Edge, Firefox)
Microsoft Teams: embedded inside the Teams client (see integration)

All platforms share the same feature set and account data syncs across devices.

How to choose a softphone

Softphones are rarely bought on their own — the softphone is the client app for a cloud phone or UCaaS platform, so choosing one really means choosing the platform behind it. Judge candidates on six criteria:

Platform coverage — does it run natively on every OS your team uses, plus a browser client? A softphone that is desktop-only strands mobile workers; a mobile-only one strands the support desk.
Feature parity across devices — the desktop and mobile apps should expose the same features. Many vendors ship a full desktop client and a stripped-back mobile app, which forces users back to their desks.
AI built in, not bolted on — live transcription, post-call summaries, and CRM logging should be native features, not a separate paid add-on or a third-party plugin.
CRM and tool integration — click-to-dial, inbound screen pop, and automatic activity logging into Salesforce, HubSpot, or your help desk are what make a softphone faster than a desk phone.
Call quality engineering — look for adaptive codecs, packet-loss concealment, and network diagnostics. A softphone is only as good as its handling of imperfect WiFi.
Security and admin control — SSO, MDM support, conditional access, and a real admin console for provisioning and deprovisioning users.

The wrong way to choose is on price per seat alone. A cheap softphone that lacks CRM integration or mobile parity quietly costs more in lost productivity than the few dollars per user it saves.

Softphone deployment best practices

Rolling out softphones to a team is mostly a change-management exercise, not a technical one:

Standardize headsets. The headset is the largest call-quality variable. Issue a known-good USB or Bluetooth headset rather than leaving people on laptop mics.
Test the network first. Run a VoIP readiness check on each office network and apply QoS rules to prioritize voice traffic before go-live.
Provision before training. Have accounts, DID numbers, and devices ready so the training session is hands-on, not a waiting room.
Set E911 expectations. Make sure every user knows their registered E911 address and how to update it when they move — this is a safety issue, not a nicety.
Keep a few desk phones. Reception, conference rooms, and common areas usually still warrant hardware. Plan the hybrid mix rather than going 100% softphone by default.
Deprovision cleanly. When someone leaves, disabling their account should immediately kill the softphone on every device they installed it on.

Softphone in 2026: what AI changes

The softphone has quietly become the most important surface in business communication because it is where AI now lives. A desk phone is a fixed-function device; a softphone is a software client that gains capabilities with every update.

In 2026 the AI features that were premium add-ons two years ago are standard in the softphone itself:

Real-time transcription and translation — the call is transcribed live, with speaker labels, and can be translated on the fly for cross-language conversations.
Live agent assist — during the call, the softphone surfaces relevant knowledge, suggested answers, and next-best actions on screen.
Automatic post-call work — the summary, action items, and CRM update are generated and written back without the rep typing anything, collapsing after-call work toward zero.
AI call screening — the softphone can let an AI answer, qualify, or triage a call before it ever rings the user.
Voice isolation — AI noise suppression removes background sound on both ends, which closes most of the historic call-quality gap with desk phones.

The strategic point: because the softphone is software, this capability set keeps expanding without any hardware refresh. An organization on softphones inherits each new AI feature automatically; an organization on desk phones is frozen at the capability level of the hardware it bought. That widening gap is the main reason softphone-first deployment is now the default rather than the exception.

Example

A 12-person regional CPA firm bought and installed desk phones five years ago at $200/phone = $2,400. When COVID hit and everyone went remote, the phones sat in an empty office. They moved to DialPhone softphones on everyone’s laptops:

$0 in new hardware
Number masking kept personal cells private
Mobile app meant home office, coffee shop, or client site all worked
When they returned to hybrid work, some users added Bluetooth headsets
The old desk phones: donated

Softphone plus a $100 headset beat the desk phones on every dimension except physical presence at the empty desk.

Softphone frequently asked questions

What is the difference between a softphone and a regular phone?

A regular phone — a desk IP phone or a traditional landline handset — is a dedicated hardware device that only makes calls. A softphone is a software application that runs on a device you already own (laptop, desktop, smartphone, tablet) and turns it into a phone endpoint.

The practical differences are mobility (a softphone follows the user anywhere with internet, a desk phone is tied to a desk), cost (no hardware to buy), and capability (softphones include AI transcription, CRM integration, video, and messaging that desk phones cannot). The call itself travels over VoIP in both cases.

Is a softphone better than a desk phone?

For most modern roles, yes — but not universally. Softphones win on mobility, cost, AI features, and the ability to gain new capabilities through software updates, which is why they are the default endpoint in cloud phone deployments. Desk phones still make sense for reception areas, conference rooms, non-computer workers in warehouses or retail, and regulated environments like hospital rooms. The realistic answer for most businesses is a hybrid: roughly 90% softphone with a handful of desk phones for specific physical locations.

Do I need a headset for a softphone?

Strongly recommended. A softphone works through whatever microphone and speakers the device has, but laptop built-in mics are noisy and pick up room sound. A $50–$100 USB or Bluetooth headset is the single biggest call-quality upgrade you can make, and a good headset on a softphone sounds better than most desk phones. For any role that spends real time on calls, treat the headset as a required part of the deployment, not an optional accessory.

Can a softphone call 911?

Yes, but it requires correct E911 setup. Because a softphone can be used from anywhere, the system cannot assume a fixed location the way a landline can. The softphone must collect and maintain the user’s current physical address so that a 911 call routes to the right Public Safety Answering Point with a dispatchable location.

DialPhone’s softphone prompts users to confirm their location at login and when the device moves. Remote workers must keep their registered address current — if they call 911 from a location that does not match their registered address, responders may be sent to the wrong place.

Does a softphone work without internet?

No. A softphone places calls over VoIP, which requires an internet connection. On a smartphone, the softphone app can fall back to the cellular data network or, in some configurations, hand the call to the mobile carrier network, so a phone with cellular signal can still make calls. But a softphone on a laptop or desktop with no internet connection cannot make or receive calls. This is why network readiness and a backup connection matter for business-critical deployments.

See DialPhone’s softphone

Business phone system with softphone → · Mobile and desktop apps → · Small business phone system →

Cloud phone for remote teams
Business phone AI transcription
VoIP — the protocol powering every softphone
E911 — why softphone users must keep location current
Hosted PBX — the system your softphone connects to
UCaaS — the unified platform the softphone is a client for
DialPhone pricing