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Configure the SBC1000/2000

1. Select the new Message Manipulation entry in the navigation tree

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   Caption 0 Figure 1 Select Message Manipulation Image Modified

2. Add a SIP Message Rule Table

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   Caption 0 Figure 1 Add SIP Message Rule Table Image Modified

3. Set how the rule will be applied. It can be applied to All SIP Messages, only Requests, only Responses, or Selected Messages.

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   Caption 0 Figure 1 Applicable Messages Image Modified

4. Add an entry to the new table.

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   Caption 0 Figure 1 Add Entry Image Added

5. Set

   Set

   the Header Action to Modify and the Header Name to P-Asserted-Identity. As you can see, any SIP Header can be manipulated.

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   Caption 0 Figure 1 Set Header Action and Name Image Modified

6. To set the new PAI value, click Add/Edit...

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   Caption 0 Figure 1 Set PAI Value Image Modified

7. ... and add the new value in the Edit Message Field

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   Caption 0 Figure 1 Edit Message Field Image Added

8. Click OK to

   Click OK to

   complete adding the entry to the table.

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   Caption 0 Figure 1 Click OK Image Modified

9. In the SG, Enable the Message Manipulation

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   Caption 0 Figure 1 Enable Message Manipulation Image Modified

10. Add the new Message Manipulation to the

    Outbound Message Manipulation

    Outbound Message Manipulation Table

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    Caption 0 Figure 1 Add Message Table Image Modified

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Debugging Output

In the debugging output below, you can see the PAI change from +15103644064 to 555

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By adding a Conditional Rule to the Message Rule, you can perform the manipulation only when it matches a particular condition. In the example below, the PAI would only be modified if the call is from +15103644064.

1. Add a Conditional Rule Table entry

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   Caption 0 Figure 1 Add Conditional Rule Table Entry Image Modified

2. Add the Description and set the Match Type from the pulldown. In this case, we're looking to match the calling number, which is represented by the from.uri.userinfo.user token.

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   Caption 0 Figure 1 Add Description and Match Type Image Modified

3. Set the Operation to Equals. Set the Match Value Type to Literal and put the number to be matched into

   the Match Value.

   the Match Value.

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   Caption 0 Figure 1 Set Operation Image Modified

4. With the Match information configured, it's time to modify the Message Rule so that it only runs when the Condition is met. In the Message Rule, click the Condition Expression Add/Edit button.

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   Caption 0 Figure 1 Set Static PAI Image Modified

5. Set it for Match All Conditions and select the Conditional Rule you just finished programming in the previous steps. Click Apply.

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   Caption 0 Figure 1 Message Rule Condition Image Modified

6. Click Apply to complete the update to the Message Rule.

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   Caption 0 Figure 1 Update Message Rule Image Modified

Important Notes