- Caller ID
- Dialing using name/ID: This is different from dialing from your mobile call register as the user does not need to save a number to a sip phone.
- Locally stored and network-based directories
- Conference and multiparty call
- Call park
- Call transfer and call hold
- Preserving user name/ number when choosing a different service provider (not widely supported).
- Applications like weather report, Attendance in school and offices, Live news etc.