> Connectivity > Admin. Settings > Net settings > Advanced VoIP settings .
By following these settings, you bypass the limitations of third-party apps and enjoy the seamless, high-quality audio integration that made Symbian the king of business smartphones. sip voip 3 1 settings symbian 3 v1 0 en full
Configuring SIP VoIP 3.1 on Symbian^3: The Ultimate Setup Guide > Connectivity > Admin