Special Services Patents (Class 379/201.01)
Anonymous party (e.g., protection of called or calling party's identity, privacy) (Class 379/201.11)
- Time (e.g., time of day, expiration of time period, time zone, date) (Class 379/207.03)
- Line or loop condition (Class 379/207.04)
- Service access code (Class 379/207.11)
- Party location (Class 379/207.12)
- Party identification or validation (e.g., personal identification number (PIN)) (Class 379/207.13)
- Dialed number identification service (DNIS) (Class 379/207.14)
- Automatic number identification or calling number identification (ANI or CLID) (Class 379/207.15)
- Ringing signal (e.g. having a predetermined cadence or distinctive ring) (Class 379/207.16)