[Serusers] Nat Helper / RTPproxy

Hello All, I have a couple of questions Regarding NatHelper & RTPproxy 1. Does NAThelper assist in NAT traversal when STUN cannot manage due to Symmetric NAT. 2. Does NAThelper provide any help when NOT used in conjunction with RTPproxy. 3. Are there any SER.cfg settings that are suggested to get started with NAThelper. (We are using grand stream devices in addition to a few ATA) 4. Am I correct in the assumption that if you use a RTPproxy - all the real time voice traffic is passed through your network connection? Thanks & Regards, Dinesh Dinesh Mahbubani The International Marketing Exchange Ltd. Tel: (852) 2541-2617 Fax (852) 2543-4537