Here INFO0 sequince I recive from HperDSP (from 12bit) -21FD. As defned in ITU-V34: === 10.1.2.3.3 INFO0 information bits Table 14 defines the bits in the INFO0 sequences. Bit 0 is transmitted first. TABLE 14/V.34 Definition of bits in INFO0 sequences INFO0 bits LSB:MSB Definition 0:3 Fill bits: 1111 4:11 Frame sync: 01110010, where the left-most bit is first in time 12 Set to 1 indicates symbol rate 2743 is supported 13 Set to 1 indicates symbol rate 2800 is supported 14 Set to 1 indicates symbol rate 3429 is supported 15 Set to 1 indicates the ability to transmit at the low carrier frequency with a symbol rate of 3000 16 Set to 1 indicates the ability to transmit at the high carrier frequency with a symbol rate of 3000 17 Set to 1 indicates the ability to transmit at the low carrier frequency with a symbol rate of 3200 18 Set to 1 indicates the ability to transmit at the high carrier frequency with a symbol rate of 3200 19 Set to 0 indicates that transmission with a symbol rate of 3429 is disallowed 20 Set to 1 indicates the ability to reduce transmit power to a value lower than the nominal setting 21:23 Maximum allowed difference in symbol rates in the transmit and receive directions. With the symbol rates labelled in increasing order, where 0 represents 2400 and 5 represents 3429, an integer between 0 and 5 indicates the difference allowed in number of symbol rate steps 24 Set to 1 in an INFO0 sequence transmitted from a CME modem 25 Set to 1 indicates the ability to support up to 1664 point signal constellations 26:27 Transmit clock source: 0 = internal, 1 = synchronized to receive timing, 2 = external, 3 = reserved for ITU 28 Set to 1 to acknowledge correct reception of an INFO0 frame during error recovery 29:44 CRC 45:48 Fill bits: 1111 NOTES 1 - Bits 12 through 14 are used to indicate the modem's capabilities and/or configuration. The values of bits 15 through 20 depend upon regulatory requirements and apply only to the modem's transmitter. 2 - Bit 24 may be used in conjunction with the GSTN access category octet defined in Recommendation V.8 to determine the optimum parameters for the signal convertors and error-control functions in the call and answer modem and any intervening CME. ====== Anybody know why? S54=64 on HiperDSP ===== mdm1> ati4 Modem Current Settings E0 Q1 V0 X0 &A1 &G0 &K1 &M4 &N0 &U0 %B7 *U1=1 *U2=0 *U3=1 *V2=0 *X0=2048 *X1=2 S00=001 S01=000 S02=043 S03=013 S04=010 S05=008 S06=002 S07=060 S08=002 S09=006 S10=007 S11=070 S12=050 S13=000 S14=001 S15=000 S16=000 S17=000 S18=000 S19=000 S20=000 S21=000 S22=000 S23=000 S24=000 S25=000 S26=000 S27=000 S28=008 S29=020 S30=000 S31=000 S32=000 S33=000 S34=000 S35=000 S36=000 S37=000 S38=000 S39=012 S40=000 S41=000 S42=000 S43=000 S44=000 S45=000 S46=000 S47=000 S48=000 S49=016 S50=100 S51=064 S52=005 S53=000 S54=064 S55=000 S56=000 S57=000 S58=000 S59=000 S60=000 S61=000 S62=000 S63=000 S64=000 S65=000 S66=000 S67=001 S68=000 S69=000 S70=000 S71=000 S72=000 S73=001 S74=000 S75=000 S76=000 S77=000 S78=000 S79=000 S80=000 S81=000 S82=012 Last Dialed #: ====== Good luck ! ====================== Andrey Zimin | AVZ7-RIPE MTU-Intel ISP Moscow, Russia ====================== - To unsubscribe to usr-tc, send an email to "majordomo@xmission.com" with "unsubscribe usr-tc" in the body of the message. For information on digests or retrieving files and old messages send "help" to the same address. Do not use quotes in your message.