Hi all,

I am using uac_replace_to to replace the TO header on requests. I understand it can only be called once per message and the recommendation is to store the updated value in a pvar and apply it in the branch route.

However in my scenario I wish to first try one endpoint and then if it gets a 4XX response forward it to another UAC, and update the TO accordingly.

Currently trying to call  uac_replace_to twice shows an error and corrupts the TO header. Is there a work around for this?

Thanks again
Matthew