Netsipp is a free softphone app that enables users to make and receive voice calls using their business or residential SIP accounts on any Android device running on version 6.0 and above from anywhere in the world, using either cellular data or Wi-Fi. This versatile app offers various telephony features, including hold, mute, transfer, call waiting, and custom ringtones.

One of the app's significant advantages is its support for unlimited SIP accounts, making it ideal for businesses with multiple phone lines. Users can also view call information, including incoming, outgoing, and missed calls, in the call history. The app also offers powerful NAT traversal options, including automatic NAT discovery, STUN, and UPnP, ensuring seamless connectivity. Additionally, users can switch between different voice channels, including earphone, speakerphone, and 3.5mm headset, for optimal audio quality.

Overall, Netsipp is a reliable and user-friendly app that provides a seamless calling experience for Android users with SIP accounts.