hi sir i have a new to n73. How i can use sip serves
SIP (Session Initiation Protocol) settings are needed for certain network services using SIP, e.g. for Voice over Internet Protocol (VoIP) or video sharing. You may receive the settings in a special text message from your service provider. You can view, delete, or create these setting profiles in SIP settings menu.
To configure the VoIP service settings, a separate SIP VoIP Settings application needs to be installed in the device. The application can be downloaded from Nokia Forum:
Hope this helps.