Exemple #1
0
static int Lucent_handle_dle(char data)
     {

     switch (data)
          {

	  /*
	   * It appears that Lucent modems have just a single
	   * silence detection notification, that always reports
	   * as "<DLE>-s".  This report indicates that silence
	   * exceeding the duration of the interval set with AT+VSD
	   * has been detected, regardless of whether there was
	   * previously good data or not.
	   *
	   * So here we override the IS_101 mapping of DLE-s to
	   * "NO_VOICE_ENERGY", and change it to "SILENCE_DETECTED".
	   *
	   * Caveat: this will break vgetty's heuristic "if <DLE>s
	   *  was seen, there is nobody at the calling end, so let's try
	   *  data/fax mode".  So if you have a Lucent modem and want to
	   *  do voice and data/fax on the same line, you need calling
	   *  modems that send a CNG tone, or have the caller dial up,
	   *  wait for a few seconds, and then send another DTMF tone
	   *  (which will trigger data/fax mode).
	   *
	   * Patch by Paul Fox <*****@*****.**>
	   */
          case 's':
               return(queue_event(create_event(SILENCE_DETECTED)));

          }

     return(IS_101_handle_dle(data));
     }
static int
Multitech_5600ZDXv_handle_dle(char data)
{
  switch (data) {
    /*
     * Local handset goes off hook
     */

    case 't':
      return(queue_event(create_event(HANDSET_OFF_HOOK)));

  }

  return(IS_101_handle_dle(data));
}
Exemple #3
0
int ISDN4Linux_handle_dle(char data)
     {
     switch (data)
        {
        case DC4:
             lprintf(L_WARN, "%s: <DLE> <DC4> received", program_name);
             voice_stop_current_action();
             
             switch (voice_command("", "OK|VCON|NO CARRIER"))
                  {
                  case VMA_USER_3:
                       queue_event(create_event(NO_CARRIER));
                       break;
                  case VMA_USER_1:
                  case VMA_USER_2:
                       break;
                  default:
                       return FAIL;
                  }
             
             got_DLE_DC4 = TRUE;
             return (OK);

        case ETX:
             lprintf(L_WARN, "%s: <DLE> <ETX> received", program_name);
             voice_stop_current_action();
             
             switch (voice_command("", "OK|VCON|NO CARRIER"))
                  {
                  case VMA_USER_3:
                       queue_event(create_event(NO_CARRIER));
                       break;
                  case VMA_USER_1:
                  case VMA_USER_2:
                       break;
                  default:
                       return FAIL;
                  }
             
             return (OK);
             
        default:
             return(IS_101_handle_dle(data));
        }
     }