查看“呼叫等待模块”的源代码

'''Call Waiting Module User Guide'''
此模块以及在13版本中更新

'''Overview'''

呼叫等待模块支持多同一通道支持多个呼叫。如果此通道被占用，后续呼入的环境将进入呼叫等待状态。<br/>
呼叫等待模块提供了这个功能支持用户可以开启或者关闭呼叫等待功能。在界面上没有呼叫等待设置的菜单选项。这个选项在国内热键模块，分机模块，或者高级设置中设置。下面是通过功能热键开启孩子关闭呼叫等待。
Feature Codes 界面
http://wiki.freepbx.org/download/attachments/28181396/cw-feature-codes.png<br/>

 
Code	命令
*70	Deactivate call waiting
*71	Enable call waiting
Settings
Extension
Call waiting can be enabled/disabled for an extension through the GUI.
•	In the top menu click Applications
•	In the drop down menu click Extensions
•	When viewing an existing or new extension, click the Advanced tab.
•	Scroll down to the Extension Options tab to find the "Call Waiting" option.
 
'''Call Waiting'''
Enable/Disable: Sets the initial/current call waiting status for the extension.
Advanced Settings
http://wiki.freepbx.org/download/attachments/28181396/cw-extension-settings.png
Two settings in the Advanced Settings module are directly related to call waiting.
•	In the top menu click Settings.
•	In the drop down menu click Advanced Settings.
•	Scroll down to the Dialplan and Operational section.
'''CW Enabled by Default'''
 
Yes/No: Whether to enable call waiting settings for newly created extensions. Default is Yes.
Occupied Lines CW Busy
http://wiki.freepbx.org/download/attachments/28181396/cw-enabled.png
 
Yes/No: Whether to report unanswered call waiting calls as "busy" (resulting in the busy voicemail greeting). Default is Yes. If set to No, unanswered CW calls simply report as "no-answer."