On 26 Feb, 1995 08:52 Luc Gibert of 2:320/104.29 wrote:
 PM>                      Firmware 6.14 release note      01-17-1995
 PM>                    ------------------------------
 LG> [...]
 LG>         BTW, could anyone post me the specs for 6.13 ? Here
 LG> or if It's too annoying for another, in netmail or Email.
 LG>         Thanx in advance for answer.
Here you go:
           Firmware 6.13 release note      07-19-1994
         ------------------------------
New feature:
Voice
1. Add a new 3-bit ADPCM voice compression scheme, use AT+VSM=30 to select
   this mode. In this new format, every 5 samples of compressed data is
   packed into 2 bytes, the extra bit is set to 1 for resync.
   byte 1 :                    byte 2 :                  
        1 A A A B B B C             C C D D D E E E 
                       
   1 : resync bit.
   A A A : first  sample
   B B B : second sample
   C C C : third  sample
   D D D : forth  sample
   E E E : fifth  sample
      
2. Add a new 4-bit ADPCM voice compression scheme, use AT+VSM=4 to select
   this mode. Two samples of compressed data is packed into 1 byte.
   It is necessary to increase the DTE speed to 57600 bps to use this
   compression scheme.
              
        A A A A B B B B 
              
   A A A A : first  sample
   B B B B : second sample
3. Accept hardware flow control for voice data flow, use the command
   "AT+FLO=2" to enable the hardware flow control. (default value is
   "AT+FLO=1").
Improvement:
FAX
1. Improved 2-D high resolution graphic quality on E model.
2. Fax receiving speed is now command configurable on class 2 and
   class 2.0.
Modem
1. High DTE speed AT auto-baud detection problem on E model fixed
2. Ring volume control (ATNn) bug fixed
3. V.23 answer tone detection bug fixed.
4. V.26bis performance improved
5. V42 block resent count will have a wrong count when remote modem is busy,
   this bug is corrected.
6. Modem automatically disables terminal aborting if async leased line is
   set.
7. Modem can now accept V.25bis async command in sync-data (&M1) mode.
8. Set bit 7 of S52 to select space or mark as the first signal of the
   V.23 handshaking sequence.
9. The bug of modem disconnecting the line after second ATO1 command
   is fixed.
10. ATA will not cause "ERROR" response now if modem is already off hooked on
    EG+ model.
11. Will detect V22bis carrier longer to recognize it as a carrier presence
    to improve compatibility.
12. Hook flash time can be adjusted by setting S56, unit value is 10 ms.
13. Hardware reset (press D/V button on E, E+ or ENTER key on S+ while
    powering on) will only reset profile 0 and 1 but profile 2 and 3
    will not be affected.
Cheers,
Pat
--- timEd 1.01+
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