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In the North American telephone network, there are different methods of inter-office signaling--Dial Pulse (DP), Multi-frequency (MF), Modem, Common-Channel Inter-office Signaling (CCIS) [currently limited to Class 4 and higher offices], eventually CCITT 7 (currently not available in North America) and finally Dual-Tone Multi-Frequency (DTMF).
CCIS is similar to CCITT 7, and has not acheived widespread use in the DDD network.
This suggests that CCITT 7 is inappropriate for these offices.
For offices where CCITT 7 is inappropriate, a secondary mechanism must be explored.
The remainder of this article describes the treatment of those offices where CCITT 7 is not economically justified.
The following scenario applies to those systems which do not support CCITT 7.
The LEADTOOLS/32 DLL provides a palette editor, image manipulation (flip, rotate, reverse, lighten, darken, resize), CCITT Group III and IV (fax standard) 1-bit file handling, its own tighter proprietary 1-bit image file compressor and more.
Other features include simultaneous RIP-and-print, continual printing, scanback, electronic collation, full ICC color management, and PostScript, PDF, TIFF, JPEG, HP/GL2, CCITT G4, PCL5e and ASCII printing to color copiers.
Unlike other CAR products, SoftCAR+ takes advantage of two images, including a high-resolution JPEG gray-level snippet image and a CCITT black-and-white image, captured on Unisys NDP transports in one document pass.
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- CCIT 2 code
- CCITT Directory Services Protocol
- CCITT EDI Protocol
- CCITT High Level Programming Language
- CCITT HIgh-Level Language
- CCITT Message Handling Protocol
- CCITT Packet Switching Protocol
- CCITT Standard Protocol for Analog Circuits