Apps similar to Thirdlane Multi Tenant PBX include Asterisk, which is free and open source. Other options are 3CX, RingCentral, FusionPBX and PBXware. You can choose from more than 10 IP PBX Systems like Thirdlane Multi Tenant PBX for Mac, Linux, Android, iPhone and the web.
Asterisk is an open source framework for building communications applications. Asterisk turns an ordinary computer into a communications server. Asterisk powers IP PBX systems, VoIP gateways, conference servers and other custom solutions.
Canada
3CX is a software-based, open standards IP PBX that offers complete Unified Communications, out of the box.
Offers a free trial period, after with you need to upgrade to paid subscription.
Cyprus
EU
Integrated cloud solution for business communication offering calls, video, messages, and fax. Provides scalable solutions, real-time chat, HD video conferencing, and robust security, serving 400,000+ customers in over 100 countries with renowned uptime and AI-powered interactions.
United States
FusionPBX is an open source FreeSWITCH GUI. FusionPBX can be used as a high available single or domain based multi-tenant PBX, carrier grade switch, call center server, fax server, voip server, voicemail server, conference server, voice application server, appliance framework...
PBXware is the world’s first and most mature IP PBX Professional Open Standards Turnkey Telephony Platform. Bicom Systems’ softswitch is offered in the Business, Call Center and Multi-Tenant Editions.
United Kingdom
The MiRTA PBX is an interface written in PHP using Mysql as backend to manage a multitenant PBX built over the Asterisk Open Source PBX. An easy to use interface allows you to manage one or more Asterisk PBX in a multi tenant, load sharing and high availability configuration.
EU-hosted cloud PBX for businesses that need GDPR compliance, fast configuration changes, and integration with Teams and Odoo.
LuxembourgEU
Vodia Phone app is a free add-on for your Vodia PBX that lets you connect to your account on your Vodia PBX. Starting with Android 5.0 Lollipop, based on the WebRTC technology.
VoIPstudio is a complete business phone system and scalable call center with small business pricing. Replace your PBX, get ready for AI, or cut communications costs. Get started in seconds, with no long-term commitment.
United Kingdom
Pakistan
