Linphone is an open-source SIP soft client that can be installed on your desktop or mobile phone (Android/iOS). Linphone can be connected directly to a SIP trunk, like Voxtelesys, or can be registered to a PBX system like FreePBX, FusionPBX, etc!
* View the Voxtelesys guides here: [https://voxtelesys.com/tutorials/linphone](https://voxtelesys.com/tutorials/linphone)