Comtrol AT Command Set Rev A - Manual (Page 181)

AT Commands Reference Manual
100722B Conexant 5-9
- Escape from Transmission
The DCE may request the DTE to halt Phase C transmission, by sending a cancel
character (024) to the DTE. In this case, the DTE should terminate Phase C
transmission, issue , and wait for the OK response code from the DCE.
Table 5-2. T.30 Session Subparameter Codes
Label Function Value Description
VR Vertical Resolution 0 Normal, 98 lpi
1 Fine, 196 lpi
BR Bit Rate (See Note 1) +FDCS (originate) +FDIS (answer)
0 2400 bps/V.27 ter V.27 ter (2400 only)
1 4800 bps/V.27 ter V.27 ter
2 7200 bps/V.29 V.29, V.27 ter
3 9600 bps /V.29 or V.17 V.29, V.27 ter
4 12000 bps/V.33 or V.17 V.17, V.33, V.29, V.27 ter
5 14400 bps/V.33 or V.17 V.17, V.33, V.29, V.27 ter
WD Page Width 0 1728 pixels in 215 mm
1 2048 pixels in 255 mm
2 2432 pixels in 303 mm
3* 1216 pixels in 151 mm
4* 864 pixels in 107 mm
LN Page Length 0 A4, 297 mm
1 B4, 364 mm
2 unlimited length
DF Data Compression
Format 0 1-D modified Huffman
1* 2-D modified Read
2* 2-D uncompressed mode
3* 2-D modified modified Read
EC Error Correction 0 Disable ECM
(Annex A/T.30) 1* Enable ECM, 64 bytes/frame
2* Enable ECM, 256
bytes/frame
BF Binary File Transfer 0 Disable BFT
1* Enable BFT
ST Scan Time/Line VR = normal VR = fine
0 0 ms 0 ms
1 5 ms 5 ms
2 10 ms 5 ms
3 10 ms 10 ms
4 20 ms 10 ms
5 20 ms 20 ms
6 40 ms 20 ms
7 40 ms 40 ms
Notes: 1. CCITT T.30 does not provide for the answering station to specify all speeds exactly using the DIS frame.
Implementation of some BR codes (e.g., code 2) by an answering DCE is manufacturer specific.
* Not supported.