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Message translation tables allow rules to be put in place so that unusual message interactions during the ringing stage of a call setup can be manipulated such that proper ringback is provided to the originator of the call. For more details, see Message Translation Usage Overview.

To create or modify an Entry to a Message Translation Table:

  1. In the WebUI, click the Settings tab.
  2. In the left navigation pane, go to Telephony Mapping Tables > Message Translations > Entry.

Figure : Message Translation Table

 

Modifying An Entry to a Message Translation Table

  1. Click the expand () Icon next to the entry you wish to modify.
  2. Edit the entry properties as required, see details below.

Resequencing an Entry in a Message Translation Table

  1. Click the Resequence icon ( ) at the top of the table.
  2. Select the row(s) you want to move.
  3. Click the Move Selected Rows Up ( ) or Move Selected Rows Down ( ) icon to reposition the row(s) in the table.
  4. Click Apply.

Enabling an Entry in a Message Translation Table

  1. Select the check box next to the entry you wish to enable.
  2. Click the Enable () icon at the top of the table. 

Disabling an Entry in a Message Translation Table

  1. Select the check box next to the entry you wish to disable.
  2. Click the Disable ( ) icon at the top of the table. 

Creating an Entry to a Message Translation Table

  1. Open the translation table by clicking its entry in the navigation panel.

    Figure : Open the Translation Table



    Click the Create Message Translation ( ) icon.

    Figure : Create Message Translation

     

Incoming Message Panel - Field Definitions

Message Type

Specifies the type of incoming message. Valid options: Progress, Alert, Connect, orProceeding.

IE Type/SDP Presence

Specifies the Information Element (IE) type/Session Descriptor Protocol to be matched and translated.

ISDN PI Present

Specifies whether or not a Progress Indicator should be present in the message.

Outgoing Panel - Field Definitions

Send Message

Specifies when to send an outgoing message.

Message Type

Specifies the type of outgoing translated message. Valid options: Progress, Alert, Connect, or Proceeding.

IE/SDP Presence

Specifies the outgoing translated Information Element (IE) or Session Descriptor Protocol.

Media Cut Through

Specifies the use of media cut-through and when.

Media Panel - Field Definitions

Early Media Status

Specifies the handling for Early media status. Available only when the Incoming Message Type is Progress or Alert.

The available options for this filter are as follows:

  • Any - this setting will match an incoming message regardless of whether early media has or has not been negotiated
  • Negotiated - this setting will match an incoming message only if early media has already been negotiated
  • Not Negotiated - this setting will match an incoming message only if early media has not yet been negotiated

For example, SBC Edge can receive 183 Session Progress with SDP and a following 180 Ringing with SDP. Since the early media audio path has already been negotiated with the 183 Session Progress message, SBC Edge can strip the SDP from the 180 Ringing. This can be done to either a SIP or an ISDN call leg. In order to do this, you would set the value of the Early Media Status to Negotiated. As a result, the message translation rule will only match calls if the early media path has already been negotiated.

You could also create a message translation rule that will match only if early media path has not been negotiated.