Cancel subscription using CyberSource

[SomyNopatri]

I am using CyberSource Payment getway. In this we wan't cancel subscription I read many document for this, they provide sample code of key like which key we should pas for cancellation but they are not mention which api we should call. This is Documentation link :-

http://apps.cybersource.com/library/documentation/dev_guides/Recurring_Billing/SO_API/Recurring_Bill.../echatspin /echatrandom

This is, How do I Cancel a Subscription via Code:-

Set1 the paySubscriptionUpdateService_run service field to true. Step 2 Include the following fields in the request:

     merchantID
     merchantReferenceCode
     recurringSubscriptionInfo_status—set to cancel.
     recurringSubscriptionInfo_subscriptionID

Please can you clear which api we should call for that.