UDP (Standard) or TCP (e.g., port 5065 for specific providers) Registration Always on (to receive incoming calls) Public User Name username@your-provider.com Loose Routing On (typically required for NAT traversal) Advanced Symbian^3 Resources Developer Library : For the underlying architecture of these settings, the Nokia Symbian^3 Developer's Library
Obtain the Nokia_SIP_VoIP_Settings_v1_0_en.sis or similar version for Symbian^3. sip voip 3 1 settings symbian 3 v1 0 en full