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Best Telephony Software in 2026

29 apps
Research read 28 Sept 2026
How the order is worked out

1

3CX
by 3CX
Free plan WebWindowsLinux+3

7.7 Free plan · paid from $300/yr Visit site
2

CloudTalk AI Voice Agent
by CloudTalk AI Voice Agent
Free plan AndroidAPIiPhone+4

CloudTalk pairs automated call handling with escalation to human agents and a range of integrations.

7.6 From $99/mo · 14-day trial Visit site
3

Issabel
by Issabel
Free plan AndroidAPILinux+2

Issabel provides a broad open-source communications platform with PBX, contact-center, and integration features.

7.5 Free plan · paid from $8.33/mo Visit site
4

VitalPBX
by VitalPBX
Free plan AndroidAPIExtension+6

VitalPBX offers a free plan alongside three paid plans, with features including custom call routing and voicemail transcription.

7.0 Free plan · paid from $100/mo Visit site
5

Zadarma
by Zadarma
Free plan WebWindowsMac+2

Zadarma combines business calling features with web and device apps. Compare the listed plan allowances carefully, since they differ by plan.

6.9 Free plan · paid from $39/mo (annual) · 7-day trial Visit site
6

Dialpad Connect
by Dialpad Connect
Free trial AndroidiPhoneMac+2

Dialpad Connect combines business calling with chat, meetings and AI-generated call notes across devices. Review the plan details and request pricing as needed, since no plan prices are listed.

6.5 14-day trial Visit site
7

JustCall Sales Dialer
by JustCall Sales Dialer
Free trial AndroidAPIExtension+4

Choose JustCall Sales Dialer if your team needs lead prioritization, multiple dialing modes, and call outcome follow-up in one sales calling tool.

6.4 From $49/user/mo (annual) · 14-day trial Visit site
8

Nextiva
by Nextiva
Free trial AndroidAPIExtension+5

Nextiva combines business calling with messaging, meetings, and collaboration features across its plans. The listed monthly options begin at $15 a month, and there is no free plan or trial.

6.3 From $15/user/mo Visit site
9

NFON Cloudya
by NFON Cloudya
Free trial AndroidAPIiPhone+3

Cloudya combines business calling features with web, desktop, and mobile access.

6.3 From €6.80/user/mo Visit site
10

sipgate team

Free plan iPhoneLinuxMac+2

6.3 Free plan · 30-day trial Visit site
11

Placetel
by Placetel
Free trial AndroidAPIiPhone+3

Placetel combines a broad business phone feature set with desktop, mobile, browser, and API access. Its 30-day trial and tiered support let teams evaluate the service before choosing a paid plan.

6.2 From €6.90/user/mo · 30-day trial Visit site
12

Quo
by Quo
Free trial AndroidAPIiPhone+3

Quo combines business calling across desktop and mobile platforms with call routing and voicemail features.

6.2 From $15/user/mo (annual) · 7-day trial Visit site
13

Aircall
by Aircall
Paid WebWindowsMac+2

Choose Aircall if your business needs a calling service with routing, attendant, and voicemail transcription features across desktop and mobile platforms.

6.1 From $30/user/mo (annual) · 7-day trial Visit site
14

Ringover
by Ringover
Free trial AndroidAPIExtension+5

Ringover provides business calling features across a broad set of platforms. Its entry prices come with minimum-user and annual-commitment requirements, so those terms matter when selecting a plan.

6.1 From $15/user/mo (annual) · 7-day trial Visit site
15

SIP.US Cloud SIP Trunking

Free trial AndroidAPIiPhone+1

SIP.US provides cloud trunking for existing PBX systems, with channel-based calling, call records, and failover options.

6.1 Visit site
16

GoTo Connect

Paid AndroidiPhoneMac+2

GoTo Connect spans business phone features, customer messaging, and contact center tools.

6.0 Pricing on request Visit site
17

Grasshopper
by Grasshopper
Paid WebWindowsMac+2

Grasshopper offers a clear progression from one-user calling to unlimited-user plans with more numbers and extensions.

6.0 From $14/mo · 7-day trial Visit site
18

Telavox Phone System
by Telavox Phone System
Free trial AndroidiPhoneMac+2

Telavox provides a broad business phone system with routing, recording, integrations, and flexible deployment options.

6.0 Pricing on request Visit site
19

Intermedia Unite
by Intermedia Unite
Paid AndroidiPhoneMac+2

Intermedia Unite combines broad communications features with business integrations, security controls, and two main plan levels.

5.9 From $27.99/user/mo Visit site
20

MightyCall
by MightyCall
Paid AndroidiPhoneMac+1

MightyCall combines business calling, team controls, dialers, and CRM integrations across major desktop, mobile, and browser platforms.

5.8 From $20/user/mo (annual) · 7-day trial Visit site
21

Ooma Office
by Ooma Office
Paid WebWindowsMac+2

Ooma Office combines business calling features with desktop and mobile access across five platforms.

5.8 From $19.95/user/mo Visit site
22

Zoom Phone
by Zoom Phone
Free trial AndroidiPhoneLinux+2

Choose Zoom Phone if you need a cloud phone system with routing tools, voicemail transcription, and connected communications across multiple platforms.

5.8 From $10/user/mo Visit site
23

Phone.com
by Phone.com
Paid WebWindowsMac+2

Phone.com combines business calling features with desktop, mobile, and browser access. Its paid-only structure and annual starting price should be considered before choosing a plan.

5.7 From $15/user/mo (annual) Visit site
24

Yeastar P-Series Cloud Edition
by Yeastar P-Series Cloud Edition
Free trial AndroidAPIExtension+4

Yeastar P-Series Cloud Edition covers calling, contact-center communication, integrations, and multiple client types in one service.

5.6 30-day trial Visit site
25

VirtualPBX
by VirtualPBX
Paid WebWindowsiPhone+1

VirtualPBX provides core business phone features with desktop and mobile applications.

5.5 From $15/user/mo · 14-day trial Visit site

#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price

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