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Fleet F77 is a maritime communications service that offers high quality data, voice, and fax at speeds up to 64 kbps. Fleet F77 Mobile ISDN service provides reliable and fast connections, transferring large amounts of data quickly and cost effectively. Mobile Packet Data Service (MPDS) enables users to remain on-line for extended periods of time, while being charged only for the data transmitted and received.
Service Features
Fleet F77 supports a variety of communication channels, meeting diverse application requirements.
Mobile ISDN Service
Mobile ISDN is a dedicated Single Channel per Carrier (SCPC) service that enables high-speed data transfer, efficiently transmitting navigational maps and large files associated with fleet management software.
64 kbps UDI Data(Unrestricted Digital Interface)
- Large file transfer, Internet/Web access, intranet/corporate LAN access, video teleconferencing, broadcast video (real-time and store & forward), bulk e-mail, e-mail with large file attachments, and secure voice/data with Secure Terminal Equipment (STE)
56 kbps v.110 Data
- Enables interoperability with applications requiring speeds up to 56 kbps 3.1 kHz Audio Broadcast quality audio, analog G3 fax up to 14.4 kbps, V.34 analog modem data, and secure voice STU-IIB and STU-III
64 kbps Speech
- High quality voice communications
Mobile Packet Data Service
Mobile Packet Data uses Internet Protocol (IP) technology and time-shared channels to allocate network resources, enabling cost-efficient Web access, e-mail and "Always On" remote access.
Variable Speed
- For bursty applications such as Internet access, and e-mail with small file attachments
Voice Services
Fleet F77 offers a dedicated Single Channel per Carrier (SCPC) service that provides cost-effective voice and fax communications.
4.8 kbps Voice communications
2.4 kbps Fax*
*Available on only some mobile terminals.
Comparing Mobile ISDN and Mobile Packet Data Service:
| Mobile ISDN Service |
Mobile Packet Data Service |
| Dedicated 64 kbps channel |
Shared 64 kbps channel |
| Connects to PSTN/ISDN |
Connects to IP networks |
| Per second billing |
Per Megabit billing |
| Suitable for large data transfers |
Suitable for smaller intermittent data transfers |
| Example Applications |
Example Applications |
| Videoconferencing |
Web browsing |
| E-mail batch transfer |
E-mail with small attachments |
Advantages of Fleet F77 - Spot and global beam coverage for coastal and deep-sea communications in all ocean regions of the world.
- Completely meets Global Maritime Distress & Safety System (GMDSS) requirements when paired with an Inmarsat C terminal.
- Enhanced maritime distress and safety features including fixed to mobile pre-emption and enhanced priority pre-emption help guarantee completion of user defined urgent and distress level calls.
- Fleet F77 is compatible with the next generation of Inmarsat satellites (I4).
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