📄 豆豆技术网--voip基本概念(8)推动voip发展的动力.mht
字号:
From: <Saved by Microsoft Internet Explorer 5>
Subject: =?gb2312?B?trm2uby8yvXN+C0tVm9JULv5sb64xcTuKDgpOs3Gtq9Wb0lQt6LVubXEtq8=?=
=?gb2312?B?waY=?=
Date: Thu, 13 Jan 2005 14:00:07 +0800
MIME-Version: 1.0
Content-Type: multipart/related;
boundary="----=_NextPart_000_0101_01C4F978.3027C140";
type="text/html"
X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409
This is a multi-part message in MIME format.
------=_NextPart_000_0101_01C4F978.3027C140
Content-Type: text/html;
charset="gb2312"
Content-Transfer-Encoding: base64
Content-Location: http://www.ddvip.net/router/voip/index/8.htm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------=_NextPart_000_0101_01C4F978.3027C140
Content-Type: image/gif
Content-Transfer-Encoding: base64
Content-Location: http://www.ddvip.net/images/teachonline.gif
R0lGODlhVQAeAOYAAJkzAH2+/8OHafz596lTKOHDtKbT/9Spk7ZtSfjx7p9AEO/e1uHw/7FjPMyZ
f9q1o717WunTyKRJGrBiOvPm4Jw5CLl0UadPItevm////7RpQ6NFF61aMezYzuTJvM+giN69rKzV
//Tp5IfD/7p0UsaNccCCYqZLH+jRxvHk3e/3/6FCE+/eztmzn9WrlrPZ/7NmQLdwTOfz/6hTJ/n0
8bt4VciRddGkjebNwNy5qOrVyr9/X8WKbbnc/86dhfbt6O/e3ozF/+Xy/wAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACH5
BAQUAP8ALAAAAABVAB4AAAf/gBmCg4SFhoeIiYqLjI2Oj5CRkoMyBgGXmJmam5ydnp+gnAYyhzIj
PSqTqquLKi8jpIUGL6y1toYvBoYBqbe+tUIBu7/ErMKFx4MDIB8dkAQVGymqEhUSCRzRC6rJg90Z
DgAcPI8JABkwOZMU5zAF7Rjcw4QnIA4xjyLtN5Mo8O3qJn3L0A2FAhwOODjLUSPGARqDHliwgIGG
PnQwYPDYliHBgRgkMCTI0AFDjhIISnTwh+5BBQAnPJhEqXIQQ4cQkc0TBENhCw5ALzhwcOHCjw4c
hBK90KEdDAcmFBTo0EDpBQIpKsAAQALqiQ/tWmjdoJWrVxALkg4t+kOnW0EE/3AIwlGBRAIKzkxo
QECiozMSCM45o5DhBocGJjLgzWCCwzkHigtLaOfi3ITHkW9c4Hs3r4YBhAZ2OwAAYYUKCVoAAFAi
wQrUIE63oPCS5GvIAFaklp3hhODbGVajq5zhsu0KuFGrZp1gQ4TQOwWtQDhDQ4YVBAicazCjN4YP
HBysOGcihgsYvRFcx1EAtQnyNT6gn0HZMnz5GSRMuJ6dvA3ob0mHkASQDTUUBRPsdw4FNuygGjo3
sKSASgoIsgEOJewDAnqODWcfhBtmsEEJ4BhIgQPqeRPdeg5s4EACOMQY4wU1ZFBBBjT4YMKDMLgQ
wTkVlIDDCoJIgBA8IXbY4/+HMGAQ4ogwyoiDCRYAaKWADkhAIgAz0LeagjT4Y8EGlP14XQm0DeAa
hpQlWV9xbaInQWJcelnBB1cK8s10DihwAToxCKBAAhNsgA4EGlTp23AsXZXBBSSQ8GcNcWagJHHG
9RhidoAKmoAFB+RJUCEX4NABBAB0QAEJ9TR3EFIK4XABZSxNUEEHsKqqQKVKYsCkCyE2oICqrIKQ
gAQeiPrNDn3ZuIIzik3kw7OCdLCBD/CYCQME1CrGwQ4A4cDhP3Cik4O46JTQLQUTBahnITrAcKMF
H2wAVAUQUEBDi0BJ8IEIL0mggwi+cfDDBxIApYANtAGA1Q8vnQaAc6tJ/HBVxDTUe2++7o5qyAA0
gHbUAjkJkkAHJDOSQAQRjOTLyCUrW8zMkojWC804KyLDQAaEkPPPiISgSyGmvMAA0EgzYAAspVgS
ytNQRy31JaMgbfXVWNsSCAA7
------=_NextPart_000_0101_01C4F978.3027C140
Content-Type: image/gif
Content-Transfer-Encoding: base64
Content-Location: http://www.ddvip.net/images/add.gif
R0lGODlhVQAeANUAAP8AAH2+//+kpP/39/9mZv9CQofD///X1/8hIf+OjuHw//9SUv/Fxf8ZGf+D
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -