Alobulut

"This application is a softphone that works with SIP Protocol on VOIP technology, where you can use the internal phone numbers of your Alobulut switchboard on your mobile phone. It works over 4G/5G and WiFi.
With this application, you can make internal voice or video calls through your Alobulut switchboard, message other employees in your company using this application, and use a common contact directory. You can call the numbers in your personal phonebook on your mobile phone via company landlines. You can answer your company's calls and transfer the call to another location. You can put your calls on hold or even hold a conference.
You will not miss any calls with the VoIP and Push Notification infrastructure provided by Alobulut. If you wish, you can easily use the application on any software or hardware telephone exchange that supports SIP protocol. For more information - https://alobulut.com/softphone"