Growth · alternatives · 2026

24 alternatives to Zadarma

VoIP

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Zadarma launched in 2023; newer entries below may have overtaken it.

1
Zadarma▲6
Telephony solutions for small and medium business
2017 · zadarma.com · its alternatives →
2
Thirdlane Multi Tenant PBX▲26
Powerful yet affordable unified communications for business
2023 · thirdlane.com · its alternatives →
3
Zappx▲57
a power dialer built for sales people by sales people
2024 · tryzappx.com · its alternatives →
4
Vodia IP▲6
Pbx | cloud-based business phone system
2025 · web.vodia.com · its alternatives →
5
ClusterPBX▲2
The power of Modulis VoIP solutions can now be in your hands
2019 · its alternatives →
6
Zama▲81
Boost conversions with an engaging inbox experience!
2024 · its alternatives →
7
SIPERB▲10
Modern Softphone powered by WebRTC for any SIP PBX
2024 · siperb.com · its alternatives →
8
sip trunk providers▲4
sip trunk providers
2020 · ixica.com · its alternatives →
9
Terrakotta▲120
AI web-phone designed for cold outreach
2024 · terrakotta.ai · its alternatives →
10
IP PBX▲2
NEXT-GEN FEATURE PACKED IP PBX SYSTEM FOR YOUR BUSINESS
2019 · haloocom.com · its alternatives →
11
TrioPBX▲12
Advanced voip & cloud pbx services for you
2025 · triopbx.com · its alternatives →
12
Zammad▲74
Open source Zendesk alternative
2016 · zammad.com · its alternatives →
13
Alpha PBX▲2
IP PBX Business Telephone System
Jun 2026 · pbx.bd · its alternatives →
14
ICTPBX▲1
Open source PBX system for modern business communication
Jun 2026 · ictpbx.com · its alternatives →
15
Thirdlane Business Phone System▲23
Unified Communications solution for on-premises & cloud
2023 · thirdlane.com · its alternatives →
16
Kookoo▲102
All in one call center software for SMB's.Zero agent rental.
2017 · its alternatives →
17
magicJackGO▲60
Like Vonage, but about 1/10th the price. simple VOIP.
2014 · magicjack.com · its alternatives →
18
Callmama▲10
Affordable International Calls
2024 · callmama.com · its alternatives →
19
Twixor▲67
Customer communications made interactive and dynamic!
2019 · twixor.ai · its alternatives →
20
CommBox▲2
The future of customer communications
2020 · commbox.io · its alternatives →
21
TeleCloud▲4
Simplifying Your Business Communications
2021 · telecloudvoip.com · its alternatives →
22
I built an international calling platform for the past 6 months▲38
I built Voklit because I was tired of paying $2+/min to call banks and airlines overseas. Needed a US number that works anywhere with actual affordable rates. It's a web-based VoIP service (mobile apps coming soon). You get a real US phone number, pay-as-you-go minutes on top of a small subscription that covers the infrastructure. Bootstrapped, solo founder. Built with [Go/Next.js/ and Websockets] if anyone's curious about the stack. Adding more countries soon. Happy to answer questions or hear feedback.
Jan 2026 · voklit.com · its alternatives →
23WH
WebRTC helped me to launch my startup after 2 years of waiting.▲42
Hi All ,I been working on my idea , A Voice CRM solution for 2 years.When I started brainstorming the idea the only option I have to receive phone calls thru browser was a flash widget or use 3rd party providers like Twilio or Phono . Thanks to WebRTC we now integrated our VoIP services to receive and make calls directly thru browser .Please have a look and give us your feedback .Thanks Voz.io Team .
2013 · voz.io · its alternatives →
24
Zangi▲5
Zangi app works in VoIP blocking countries.
2016 · zangi.com · its alternatives →

Also compare

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →