所创建的每个拨号计划对象都包含至少一个订阅者访问号码或分机号码。
Each Dial Plan object that is created contains at least one subscriber access number or extension number.
如果您的ISP提供了多个可从您所处地区拨号的号码，您也可以尝试拨其他的访问号码。
You might also try dialing an alternate access number, if your ISP offers multiple Numbers you can dial from your area.
如果未听到拨号音，表明您所在单位或您的电话可能不支持这种对外呼叫类型，或需要额外的访问号码。
If you don't hear a dial tone, your organization or telephone might not support this type of outside call, or might require an additional access code.
如果未听到拨号音，表明您所在单位或您的电话可能不支持这种对外呼叫类型，或需要额外的访问号码。
If you don't hear a dial tone, your organization or telephone might not support this type of outside call, or might require an additional access code.
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