Free and open first

Best Call Management system in 2026

30 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

CallHippo

Free plan AndroidExtensioniPhone+3

Choose CallHippo for a business phone system with multiple numbers, routing, voicemail transcription and CRM connections.

7.6 From $18/user/mo (annual) · 10-day trial Visit site
3

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
4

FusionPBX

Free plan APILinuxSelf-hosted+1

FusionPBX provides a broad, self-hosted communications platform with PBX, call-center, voicemail, and browser-calling functions.

7.5 Free plan Visit site
5

Issabel
by Issabel
Free plan AndroidAPILinux+2

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

7.4 Free plan · paid from $8.33/mo Visit site
6

MikoPBX

Free plan APILinuxSelf-hosted+1

MikoPBX combines a free Asterisk-based PBX with extensive deployment, routing, integration, and API options.

7.3 Free plan Visit site
7

Callision
by Callision
Free plan Web

Callision covers browser calling, routing, supervision, reporting and listed CRM or carrier integrations.

7.2 Free plan Visit site
8

PortSIP PBX

Free plan AndroidAPIiPhone+4

Choose PortSIP PBX if you need a broad communications platform with a free edition and multiple deployment options.

7.2 Free plan Visit site
9

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
10

Wazo Platform
by Wazo Platform
Free plan AndroidAPIiPhone+3

Choose Wazo Platform if you need a free, self-hosted and programmable foundation for telecom services.

7.0 Open source Visit site
11

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
12

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.

6.3 From $49/user/mo (annual) · 14-day trial Visit site
13

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.

6.2 From $15/user/mo Visit site
14

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
15

CloudCall
by CloudCall
Paid AndroidExtensioniPhone+3

Staffing and recruiting teams using a CRM should consider CloudCall for its CRM-linked communications and calling tools.

6.0 From $15/user/mo (annual) Visit site
16

Quo
by Quo
Free trial AndroidAPIiPhone+3

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

6.0 From $15/user/mo (annual) · 7-day trial Visit site
17

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.

6.0 From $15/user/mo (annual) · 7-day trial Visit site
18

GoTo Connect

Paid AndroidiPhoneMac+2

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

5.9 Pricing on request Visit site
19

Grasshopper
by Grasshopper
Paid WebWindowsMac+2

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

5.9 From $14/mo · 7-day trial Visit site
20

VoIPstudio
by VoIPstudio
Free trial AndroidExtensioniPhone+3

VoIPstudio combines routing, business numbers, apps, integrations, and call-center functions across several paid options.

5.9 From $6/user/mo · 30-day trial Visit site
21

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
22

Natterbox
by Natterbox
Paid AndroidExtensioniPhone+1

Natterbox focuses on Salesforce-connected contact-center operations across voice and messaging channels.

5.7 From $82/user/mo Visit site
23

Ooma Office
by Ooma Office
Paid WebWindowsMac+2

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

5.6 From $19.95/user/mo Visit site
24

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.

5.6 From $15/user/mo (annual) Visit site
25

net2phone Virtual Fax
by net2phone Virtual Fax
Paid AndroidiPhoneWeb

net2phone Virtual Fax adds encrypted, multi-channel faxing to three UNITE plans. The main buying decision is choosing the phone plan whose included features fit, since faxing is an add-on.

5.5 From $19.99/user/mo 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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