Control of Session Agents tried on a SAG

Hi,

 

I have a doubt about how could we set visibility from the amount of Session Agents tried as destination on one side from the originating side. We are worried about messages 503, because we would like to perfom different actions at SAoriginating depending on both SA were down or just one.

 

Given the following topology and Hunt strategy

 

 

                                  |         | ---------         Session Agent 1

SA originating           -- | SBC |

                                  |         | ---------         Session Agent 2

 

 

We consider an approach to the solution by changing with HMRs the response from SA in order to distinguish from which SA is comming the packet, but we couldn't find a proper rules to distinguish if both SAs were consulted or just one of them.