Showing 281–300 of 1,000 ranked alternatives.
Glacier Security, Inc.
Make and receive calls
Make and receive voice calls using SIP protocol. Support end-to-end encryption. Manage call history and contacts. Integrate with Linphone for iPhone. Access open-source code for customization.
KoolSpan, Inc.
Make calls and send messages securely
Make secure HD calls and send text messages across devices, networks, and operating systems. Share files and conduct video conferences. Manage calls and messages with an intuitive interface. Support Wi-Fi, 5G, 4G, 3G, and 2G networks.
Morse Communications, Inc.
Connect, share, and manage tasks securely
Manage voice and video calls, send SMS and MMS, and chat with team members from a single . Access crystal-clear communication features, manage calls, and integrate with existing phone systems for a unified experience.
Vast Communications LLC
Join meetings from anywhere
Schedule meetings using calendar integration. Join audio or video conferences with one click. Participate in HD calls with noise suppression. Record meetings. Access online calling features without PINs or dial-in numbers.
Worldnet Telecommunications, Inc.
Work from anywhere with your office phone
Make and receive calls from any device. Transfer calls between devices during a call. Upgrade call quality while using Wi-Fi or cellular networks. Connect all devices to a single office phone number.
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