compy168,
This assumes you are not using Service Providers -> ITSP Profile B with SP1.
To add Vitelity on SP2, set all options to default on:
Service Providers -> ITSP Profile B -> (General, SIP, and RTP)
Voice Services -> SP2 Service
Then change only the following:
Service Providers -> ITSP Profile B -> SIP -> ProxyServer : [the Vitelity proxy server name or IP address]
Voice Services -> SP2 Service -> X_ServProvProfile : B
Voice Services -> SP2 Service -> AuthUserName : [your Vitelity username]
Voice Services -> SP2 Service -> AuthPassword : [your Vitelity password]