5
4.2. Hold
4.3. Call transfer
4.4. Attended transfer
4.5. Toggle calls
4.6. Conference call
4. Features
5. Call lists
6. Quit
D. Manual
2. Reverse Call-Back
3. Mobile telephony without GSM
4. Ring tones
E. Specials
1. Domestic connection charges
2. International FMC
F. Costs
G. Where can you find help with your telephone system?