Connect your O365 account and sync contacts
Use Omni number globally for calls and messages. Sync contacts from O365. Automatically connect to directory for call management. Make and receive calls, send messages, and manage contacts through the .
Showing 1–20 of 1,000 ranked alternatives.
Midcontinent Communications
Receive calls and manage voicemails
Manage business calls and messages from a smartphone or tablet. Make and receive calls, access voicemail, and send instant messages using a business number. Support conference calls and stay connected while working remotely.
1-VoIP Enhanced Services, LLC
Call and text for free
Make and receive voice and video calls between users. Send and receive text messages. Share files directly. Receive push notifications. Support HD voice and video calls.
Cebod Technologies LLC
Make calls with business numbers
Make and receive calls using a business number. Manage contacts and call logs. Enable auto-provisioning for quick setup. Use as a white-label on any device. Support SIP protocol for voice communication.
Towner Electronics, Inc
Make and receive calls via SIP
Make and receive calls using HD voice and video. Send and receive push notifications. Connect with other users for free calls. Manage call settings and access call history.
TESLA TELEKOM, OOO
Make and receive calls via SIP
Make and receive calls using SIP credentials. Listen to call recordings. Transfer calls to colleagues. Create and import contacts. View contact details and manage call history.
AMAX SOFTWARE HOUSE LTDA
Optimize communication with calls
Make and receive calls using a customizable interface. Manage contacts, schedule meetings, and send messages. Integrate with existing business systems for seamless communication and workflow automation.
AMAX SOFTWARE HOUSE LTDA
Register and make SIP calls anytime
Make and receive SIP calls using a interface. Register accounts and manage call settings. Initiate and end calls, adjust audio settings, and monitor call history.
TextNow, Inc.
Users and for free
Make and receive calls and send texts for free. Use a local or personal phone number. Choose from daily, weekly, or monthly data plans. No contracts or hidden fees.
WhatsApp Inc.
Send messages and make calls
Send text messages, make voice and video calls. Share files, images, and location. Communicate privately with end-to-end encryption. Available on mobile, tablet, and desktop. No subscription fees.
友海 张
Get a number, call, and text freely
Send and receive free text messages and make free calls using a virtual number. Generate QR codes, use a calculator, and pick colors. Connect with contacts globally.
Electric Power Board
Message contacts and check availability
Make and receive voice calls using a business phone number. Check contact availability and send instant messages to individuals, groups, or departments. Integrate voice telephony with other communication tools in a unified interface.
AMAX SOFTWARE HOUSE LTDA
Register and make SIP calls
Make and receive audio and video calls via SIP. Register accounts and manage call logs. Integrate with company systems for unified communication. Support for SIP protocols and real-time call handling.
Pinger, Inc.
Set up a number and manage contacts
Set up a new local number for texting and contact management. Send unlimited texts and create a custom voicemail. Manage contacts, receive calls, and use mobile tools for communication.
Improcom INC
Receive calls and manage your business extension
Make and receive calls using a business extension. Display business phone number on outgoing calls. Sync with mobile contacts or import new ones.
TELCEL COMMUNICATIONS, INC
Make and receive calls anytime
Make and receive calls using internal extension numbers. Initiate voice or video calls. Access contact directory and manage call settings. Integrate with certified hosted platforms for unified communications.
Algento Cloud Computing Limited
Chat, pay, and explore with contacts
Make and receive HD voice and video calls with clear audio and picture-in-picture mode. Use AI filters and effects during calls. Send money directly within chats. Translate messages in real time.
Hiya Inc
Block calls and show ID
Block and scam calls with ID display and call reason identification. Manage call screening to decide whether to answer. Prevent voicemails by blocking unwanted messages.
TextMe, Inc.
Text and call with your own number
Send and receive text messages and voice calls using a personal phone number. Message and call any number in the US and Canada. Access group features. Receive voicemail and manage call history. Create a new account to experience one week without ads.
JIVETEL COMMUNICATIONS, LLC
Call users, receive calls, manage notifications
Make and receive calls using HD voice and video. Receive push notifications. Free calling between users. Support SIP protocol for VoIP services. Manage call history and settings.
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