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VLR deregistering subscriber after IN information is updated

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sama
VLR deregistering subscriber after IN information is updated

Dear All,

Does anyone have faced problem in updating IN information of subscriber by a different VAS server?
The issue we are facing is that whenever the IN information is trying to be updated in the VLR where the subscriber is located, then the VLR deregisters the subscriber.
After that the VLR requests for new authentication data from the HLR and makes a fresh location update.
Has anyone tested this kind of VAS server in any network and faced similar problem?

thanks
BR// sama