- Functions with the mobile: hold, transfer and alternate between calls, conference calls
- Conference calls with more than three participants
- Phone number transmittal supported (depending on network provider)
- Telephoning with the mobile via fixed-line network (direct or via Call Back function)
- Picking up calls and changing phones during a telephone conversation
- Voice-to-E-mail function: send voice messages to a voice mailbox / mobile phone mailbox and / or to an e-mail mailbox (Wave-Attachment)
- Memo function: recording of telephone conversations and forwarding of the recordings to a previously defined voice mailbox / mobile phone mailbox and / or to an e-mail mailbox
- Listen to, forward, and archive received messages on the PC
- Selectable conditional target phone numbers for call forwarding in case of busy or unavailable, e.g., to a secretary or mailbox
- Change the call forwarding phone numbers and answering machine functions conveniently via speed-dialling numbers (cost free)
- Automatic greeting in advance, configurable for each user
- Cost optimization depending on use, user profiles, and rate models
- Use of privately-owned mobile phones
- TwinCard support
- User telephone book
- Convenient Web-Administration and data storage
- User guidance in English and German
