sip_on_android
If your manufacturer has not removed it from your ROM, Android natively supports SIP without any third party apps.
Please take a look for the general SIP Configuration hints for VoIP clients before starting with your android config.
Here are the configuration steps for each recent non modified android version:
sip_on_android.txt · Last modified: 2020/03/30 15:53 by 127.0.0.1