I'm not familiar with your specific issue, and not the setting that _mc mentioned above that sounds promising. However we've created some Pivot scripts to set the diversion header dynamically for each call, that approach might help you. Instead of "account/global carrier" in the "no_match" callflow we use Pivot to launch the script. An example of the output from the script with diversion header could look like this:   {"module":"resources", "data":{ "to_did":"NUMBER_TO_CALL",