Zoiper

Zoiper builds softphone software: applications that turn a computer or handset into a phone for voice and video calls routed through a SIP phone system or VoIP carrier. Its apps also handle instant messaging, presence and fax from one interface. The company aims them at remote workers and call centres that connect to an office PBX, and gives contact points in Luxembourg and the United States.

What Zoiper offers

• Zoiper 5 — a desktop softphone for Windows, macOS and Linux, with AI features that transcribe recorded calls and write summaries.
• Mobile apps — Zoiper for Android and iOS.
• Zoiper Scribe — transcription of calls, meetings and audio files on the user's own machine, with nothing uploaded to the cloud.
• Zoiper SDK — a toolkit that lets developers add calling to software of their own.
• Business features — call encryption via ZRTP, SRTP and TLS, contacts pulled from LDAP and Outlook, browser and mail plugins for dialling, and central provisioning that can use QR codes.

Who it works with

Remote staff, call centres and organisations running Asterisk, FreeSWITCH, Cisco CallManager, 3CX or most other SIP-based PBXs, plus resellers.

Key facts

• Platforms: Windows, macOS, Linux, Android and iOS
• Editions: free, Business Edition and Pro
• Build: written in C/C++ and Assembly, with no Java, Flash or .NET dependency
• Active since: 2003, per its copyright notice