GTD Parameters and Fields Mapped to VoiceXML Variables

The following table describes GTD parameters and fields that are supported in Cisco VVB.

To create, modify, and read GTDs, the following Cisco objects are used:

• com.cisco.objclass.gtd

  This is a Cisco-specific JavaScript object class that is used to create new GTD messages. To create an object of a specific class (instantiate) for creating a new GTD message, use:

  X= new com.cisco.objclass.gtd()

  Later, the GTD message can be represented in a format similar to:

  X.message_type = "'IAM'"

  Note	IAM is used only as an example

• com.cisco.signal.gtdlist

  This is a Cisco-specific session variable that represents an array of GTD objects (each object representing a GTD message) for signaling events arriving on the incoming leg. The elements of this array can be accessed in read-only mode. The VoiceXML script accesses the GTD parameters and their fields from this session variable, which is indexed by the signaling event as shown in the following format:

  com.cisco.signal.gtdlist["setup_indication"] where

  The elements of this array are read-only.

  The VoiceXML/ECMA script can access the GTD parameters and their fields from com.cisco.signal.gtdlist indexed by the signaling event as in:

  X = com.cisco.signal.gtdlist["setup_indication"] where X is read-only.

  dat1 = X.UUS[0].dat for the dat field in the first instance of the UUS parameter.

  Another Object can be created from com.cisco.signal.gtdlist using the new operation in com.cisco.objclass.gtd as in:

  Y = new com.cisco.objclass.gtd(com.cisco.signal.gtdlist["setup_indication"])

  In this case, the new object Y contains a copy of the GTD message that arrived with the Setup Ind event and is a read-write object. Y can now be used for modifying GTD parameters.

• <transfer-name>$.com.cisco.signal.gtdlist

  This is a Cisco-specific shadow variable that is used by the VoiceXML script to access GTD parameters on the outgoing leg after the <transfer> is complete. The shadow variable consists of the transfer name and "$" prepended to com.cisco.signal.gtdlist.

  In <transfer name= "gtd_xfer"..../>, gtd_xfer$.com.signal.gtdlist is an array of GTD objects for the outgoing leg indexed by signaling event names mentioned in gtd_xfer$.com.cisco.signal.gtdlist["<event-name>"]