Robocall Mitigation

In Compliance with Robocall Mitigation we have added multiple options to block ANIs based on known historical behavior: ASR, ACD, SDP/SDR. Although none of these statistics could be considered conclusive evidence of robocalling, they could be considered indicators. The Intelligent Filter routing options include ANI Thresholds on Customer/Termination route plans for:

• Minimum ASR

• Minimum ACD  

• Maximum SDR

There are 2 steps in the ANI profiling process:

1. fngenerate_agg_ani_1min is called in fnrate_all
   
1. Populates an agg_ani_1min table, getting only ANIs with 5 or more attempts per batch
   
2. Each batch is usually a minute's worth of CDR, but it can be split up into sub-batches with 10k CDRs and this number is configurable per client
   
3. agg_ani_1min is pruned every day
2. profile_ani is called every 15 minutes
   
1. Removes all that was in the table and gets the last 6 hours from agg_ani_1min
   
2. Populated on the previous step and gets ANIs with 20 and more attempts (per traffic_dir within all of the last 6 six hours regardless of batch_id)

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