300分征答：MODEM对PHONE拨号成功，能听到对方声音，为什么对方听不到MODEM播放的16BIT8000KHzWAVE？ (300分)

MODEM对PHONE拨号成功，能听到对方声音，为什么对方听不到MODEM播放的16BIT8000KHzWAVE？

你看看你的声音输出到哪儿了？如果你的猫上有声音插孔接上一个麦克风听一听是不是输出到
那儿了。

[?]windbell 谢谢你的回应，其它人没有什么要说的了吗？还是问题太简单了？

还有:
->16BIT[red]8000[/red]HZWAVE
蚊子的叫声啊

是8000 K HZ ！
大侠，是忙中出错，您就别挑这个了[]

再问：线路设备ID 和电话设备ID 各指什么？拨号后，语音文件怎样发送？
谢了，急！

up

没学过，帮你踢一脚

斑头

哈哈[]！我不是什么大侠！我说的8000HZ是频率太高了声音听起来很尖锐，你又KHZ，这一下
蝙蝠也听不到了[]
在DFW上你可能找不到这种专业的东西。只有靠你自己了。通过AT命令应当可以实现你的功能。
给你一些参考是E文的我也不懂是从手册上抄的：

Answer Call/Play Greeting/Record Message

[red]DTE to Modem Modem to DTE Description and Interpretation[/red]
#CLS=8 Configure the modem for Voice Mode. Note that
the #BDR setting is assumed to be zero here, meaning
that no time-out occurs forcing #CLS=0.
OK The modem agrees, and is now set up for voice.
#VBS=4 The DTE asks for 4-bit compression for greeting
message playback (ADPCM). The DTE needs to work at
38,400 bps since after start and stop bits are added,
the speed increases to 36,000 bps.
OK The modem is configured for 4-bit compression.
#VSS =2 Sets silence detection sensitivity to midrange.
OK The modem confirms command reception.
#VLS=0 Select the telephone line as the source, ensuring
that the modem is now on-hook. DTMF detection is now
off regardless of the previous setting of #VLS.
OK The modem confirms command reception, and it switches
in the telephone line.RING Some time later, we receive
the first call. (Note that the modem also processes
Caller ID information at this time.)
#CLS=8 Configure the modem for Voice Mode again. Although the
modem has already been so configured, it is a good
idea to select #CLS=8 directly following a RING
because in normal use, any S30 time-out or hang up
during Voice Mode forces #CLS=0.
OK The modem agrees, and is now definitely set up for voice.
#BDR=16 The DTE knows that compression requires a 38,400 bps
speed, so it forces this as the new speed. (For this
example, lets say that the DTE was sending all
commands,including this one, at 9600 bps.)
OK This OK message is sent at 9600 bps, but the modem
then switches to 38,400 bps. All subsequent commands
are assumed to be sent at 38,400 bps until either
another #BDR command is received or until the S30
timer expires. The S30 timer is now activated, and
the default is 60 seconds.
A The DTE tells the modem to answer.
VCON The modem is now in Online Voice Command Mode. DTMF
and calling tone detection is enabled.
#VTX The DTE does not wait for any tones, and tells the modem
that it is ready to send a voice greeting at the
current compression and sampling settings (4-bit/7200).
CONNECT The modem tells the DTE that it can now send data.
The modem enters Voice Transmit Mode and DTMF
monitoring is still enabled as well as the ADPCM data flow.
<Data> The DTE sends greeting message data. The modem waits
up to 1 second or until XOFF threshold is reached
before starting to transmit to ensure uninterrupted
data flow. If the voice transmit buffer runs empty,
the transmission is disabled.
<DLE><ETX> The DTE has finished with its transmission, and now
instructs the modem to enter Online Voice Command Mode
since this is the telephone line.
VCON The modem tells the DTE it is done. If the DTE sends
the <DLE><ETX> before the modem has finished transmitting
all the data in its voice transmit buffer, the DTE must
wait for this response.
#VBT=12 The DTE requests that DTMF digits be sent as “beeps”
with the #VTS command while in Online Voice Command
Mode, with each “beep” having a duration of 1.2 seconds.
OK The modem confirms command reception
#VTS=# The DTE sends a “BEEP” to annotate its greeting
message. This beep is a 1.2 second long DTMF #.
During this period, the no abort is possible from the
DTE, and should not be necessary.
OK After the modem sends the “BEEP”, it sends OK to
inform the DTE that it is ready to move on. DTMF pass
through is re-enabled.
#VBS=4 The DTE asks for 4-bit compression to recorded message.
The DTE needs to work at 38,400 bps since after start
and stop bits are added the speed increases to 36,000 bps.
OK The modem is configured for 4-bit compression.
#VRX The DTE instructs the modem to turn the line around
and begin recording a message from the remote.
CONNECT The modem sets things up and enables ADPCM data
transfer to the DTE with the current silence detection
sensitivity setting.
<Data> ADPCM data is shipped to the DTE with shielded DTMF
tones folded in. The modem is looking for silence,
busy, dial tone, and loop break. The DTE records
everything in its storage media.
<DLE>b The caller has finished, hung up, and in this case,
a busy cadence was detected before anything else such
as expiration of the #VSP silence detection period.
X The DTE uses a key abort to respond to a busy detection.
<DLE><ETX>VCON The modem is now in Online Voice Command Mode.
H DTE sends modem to #CLS=0 with #BDR=0.

待我仔细看看，随后给你们加分

gz

TO WINDBELL:
8000KHZ 也许风铃可以做到喔：）
你会得到加分的，可是你给的AT指令我的两个猫均不支持。另外BDR，VSS指令我也查不到
是什么意思。。。。：（

TO other
人心不古，大富翁上热心的人越来越少了。

我把文档发给你，自己看？

AT指令在不同类型芯片的MODEM上是有所不同，你可以直接与购买那个MODEM的厂家连续，他们一般会提供的

TO WINDBELL:
那太好了，文档请发往 cxwang#21cn$com THANQ

以发往
cxwzng@21cn.com
这个是PDF格式,从实达网上之星光盘中得来的

语音通信设备可以传送的频率上限只有4KHz多一点儿，这个频率以上的部分都将会被
过滤掉了，Modem也不例外，对方当然就听不见了!

问题我已用TAPI解决了，多谢热心参与的各位。：）

顺便说一句，论坛上推介的某些书实不敢恭维,拿去评个职称还可,解决问题就算了吧![]

顺便说一句，论坛上推介的某些书实在恭维,拿去评个职称还可,解决问题就算了吧![]