Well-known entry point for the NULL/ECHO profile.
Well-known entry point for the NULL/ECHO profile.
Keys:
- NULL_ECHO_URI
- The registration URI for the profile (optional).
- NULL_ECHO_IMODES
- The initiator_modes to use when registering the profile (optional).
- NULL_ECHO_LMODES
- The listener_modes to use when registering the profile (optional).