Reply To: Call flow for international Roaming 24th May 2004 at 13:27 #38078 ScotGuest For USSD VLR will be contacting HPLMN Surely. Roaming always related to VLR & MSC of the Visited PLMN & HLR of HPLMN. VPLMN HLR never comes in to picture. Rgds