UA behind NAT Date&Time (GMT): 2004/10/18 20:57 Name: Marcio Hi, I have a problem! I have the follow scenario. UA1 --- ADSL/NAT (PPPoE) --- Internet --- NAT2 --- OnDO Sip Server UA2------^ UA1 and UA2 the same NAT. My OnDO configuration are: Keep Address/Port mapping = ON Authentication register = OFF Authentication invite = OFF Upper Registration = OFF Thru Registration = ON Across NAT = enable Register here = ON RTP Relay = ON RTP Relay (UA on this machine) = AUTO Minimum Port = 41000 Maximum Port = 45000 Port Mapping = SDP Problem. When UA1 call UA2 UA2 ring, Hang up UA2 UA2 can hear, but UA1 don’t hear.

Re: UA behind NAT ( No.1 ) Date&Time (GMT): 2004/10/18 21:12 Name: Brekeke Support Team  <support@brekeke.com> URL: http://www.brekeke.com Please make sure if you set portforwarding for UDP 10000-10999 at NAT2 router.

Re: UA behind NAT ( No.2 ) Date&Time (GMT): 2004/10/19 13:37 Name: Marcio Thanks, I changed the configuration for portforwarding for UDP 10000-10999, but the problem continues the same. Some time when UA1 make a call UA2, UA1 make tone busy but UA2 make the Ringing. Best regards, Marcio

Re: UA behind NAT ( No.3 ) Date&Time (GMT): 2004/10/19 18:19 Name: Brekeke Support Team  <support@brekeke.com> URL: http://www.brekeke.com Oh sorry, you are using port 41000 - 45000. Then you need to set port forwarding for 41000-45000 instead of 10000-10999. And please change the setting in Config Port Mapping = SDP to Port Mapping = source port