HomeAppsCommunicationOnoff BusinessApps like Onoff Business Here are some great alternatives to Onoff Business by Onoff Telecom : Telefeo: Phone Number App ★4.0 Unity-Mobile ★3.6 AT&T Office@Hand ★3.5 OnPhone - Second Phone Number ★3.3 Telzio ★3.9 Davinci Virtual ★4.3 SmartLine Second Phone Number ★3.6 NumberGarage ★3.5 Tango Networks Communicator ★4.9 Linked Phone Business Number ★4.2 PhoneLynk ★3.9 Phone2: Second Business Phone ★3.4 MTT Business — IP phone ★3.6 UM8700 Mobile ★5.0 EasyLine Business Phone Number ★4.4 Truly Wireless: Business Phone ★3.8