Hi, I'm looking for some recommendations or guidlines. My leading IT department which is providing PSTN connectivity requires to include Remote Party ID in SIP Messages in a case where From URI is not in telco format (I prefer email like style of addressing). How to simply assign to an user its Remote Party ID which will be used when PSTN calling will occure? On what should I focus on? To use user preferences with AVP pairs? or something another? thank palo73