Hi I have 2 SIP networks with 2 SERs like on this diagramm: UA1---------SER1-----------SER----------UA2 I authenticate all UAs and all calls (local, long distance and international) on both SERs. How can I relay the call from UA1 to UA2 ? If for example UA1 has local privileges, is there a posibility to relay the call to UA2 without any more authentication? There is an error 407 (Proxy Authentication Required). Thank you in advance. Szasz Szabolcs -- This message was scanned for spam and viruses by BitDefender. For more information please visit http://linux.bitdefender.com/