Hi! I just found this parameter in sl and presence module, but the usage is not described well. What is it's purpose? I guess that the presence module exports the totag into this AVP and the sl module use this totag in its response. I think it is not a good idea to have it configureable in 2 modules. We had the same problem with the "use_domain" parameter in several modules which was fixed recently. Maybe this can be fixed the same way - having it configurable in sl module, and presence module look ups the value on loading (or generate a error if not defined). Further, the presence module's parameter documentation lack the default values. regards klaus