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Open Source Unified Communications Software (2026)
Last updated: February 2026
13 software options
Sponsored
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
A simple and secure way to connect your organization.
Standard: $0 USD (free) Advanced: $4 USD per person / month Enterprise: $8 USD per person / month Free for non-profits and educational institutions
Read more about Workplace from Meta
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Live chat and customer messaging for businesses of all sizes
Start with our free trial, no credit card is required. Then decide whether to go with our free product or one of our premium plans, outlined below: Team: $100/month (billed monthly) or $90/month (billed annually) or $80/month (billed biennially) Corporate: $320/month (billed monthly) or $290/month (billed annually) or $256/month (billed biennially) Flex: Contact Userlike for custom quote
Read more about Lime Connect
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Open source workplace messaging for web, PCs & phones
Team edition: $0 free forever Enterprise E10: $3.25 user/month billed annually Enterprise E20: $8.50/user/month
Read more about Mattermost
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Cloud-based software for team collaboration & communication
Zoho Cliq offers three paid plans - Standard, Professional, and Enterprise. A free plan is also available.
Read more about Zoho Cliq
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
The Leading Enterprise Communication Hub
Rocket.Chat offers two pricing plans: Community: A free, self-managed plan designed for small teams. Enterprise: $7/user/month with a minimum of 25 users and $35/agent/month with a minimum of 5 agents.
Read more about Rocket.Chat
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
API-based Voice and SMS platform for businesses of all sizes
Pricing for voice and SMS is based on voice minutes and SMS amounts, for example: VOICE Regular Phones: Outbound Calls – Make calls starting at $0.0120 per minute Inbound Calls – Receive calls starting at $0.0085 per minute & buy numbers at $0.8 per month Toll-Free Phones: Outbound Calls – Make calls starting at $0.0030 per minute Inbound Calls – Receive calls starting at $0.0210 per minute & buy numbers at $1 per month SMS Regular: Outbound SMS – Send SMS starting at $0.005 per SMS Inbound SMS – Receive inbound SMS at Free & buy numbers at $0.8 per month Short Codes: Outbound SMS – Send SMS starting at $ 0.0045 per SMS Inbound SMS – Receive inbound SMS at Free per SMS (See website for full pricing details)
Read more about Plivo
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Communicate, connect, convert.
Initial API setup: $9.99/month Additional pricing on per-message and monthly basis: Long Code Plans: Outbound: $0.0075 / message Inbound: $0.0075/ message Each Number: $1.00 / month Volume pricing is also available Short Code Plan: Outbound: $0.0075 /message Inbound: $0.005 /message Volume pricing is also available
Read more about SMS API
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Open-source modular communication system
Pricing for Asterisk Support Services: Single System (Level 1) – $595 per year Single System (Level 2) – $1,995 per year Multi-System (Level 3) – $3,995 per year Multi-System (Level 4) - $7,995 per year
Read more about Asterisk
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Messaging, voice, directory & analytics software for finance
Read more about Symphony Communication
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Unified communications and contact center platform
Please contact HiperPBX directly for pricing details.
Read more about HiperMe!
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Chat platform for streamlining business communication
Get 50 apps with Teams.cc at Just $14.99
Read more about Teams.cc
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Boost Efficiency. Elevate Experiences. Improve Outcomes.
Read more about MiaRec
