I believe that the Teliann phones do not have an option to send early media. If the phone gets a private IP address from the modem (10.x.x.x, 192.168.x.x, 172.<16-31>.x.x), then the modem is acting as a NAT router. Also, the RCF message on the gnugk console should show both public and private IP addresses, if the endpoint registers from behind a NAT. If you suspect that NAT is causing your trouble, take a phone (of the same model as is failing) that is on a public IP and working properly. Put a NAT router (that is not H.323 aware) in the path and see if you get the same trouble. If the modem can be configured as a bridge, and the ISP doesn't require a PPP or other login not supported by the phone, then bridging mode should fix the problem. Otherwise, you may need to use a NAT router that is H.323 aware, use a different phone that can send RTP during Progress, or it may be possible to reconfigure the terminating gateway to avoid this situation. It is also possible that the modem allows you to forward the UDP ports needed for RTP to the phone, or it may provide a DMZ feature that will avoid the trouble. Wireshark (formerly Ethereal) is a good tool for seeing if gnugk is sending RTP packets during Progress (while ringing), and if the modem is properly forwarding them to the phone. --Stewart > -----Original Message----- > From: Mahbubur Rahman [mailto:mahbub@xxxxxxxxxxxx] > Sent: Friday, October 13, 2006 12:08 AM > To: openh323gk-users@xxxxxxxxxxxxxxxxxxxxx > Cc: momi@xxxxxxxxxxxx > Subject: Re: About ring tone problem from DSL > > > Dear Steward, > Thanks for your quick reply. We generally call from HS-telian Ip > phone and Cisco Welgate. But we do not hear ring tone when called from > dsl line. I have no knowledge of whether the modem is configured as > router or not or can you tell me how to do that please? And the > terminating device is mostly Quintum Gateways. > To mention here that our gatekeeper is working in full proxy > mode. > > Regards, > Mahbubur Rahman > Sr. Software Support Engineer. > > REVE Systems > 308-C, Malibagh Chowdhury Para > Dhaka-1219, Bangladesh > Tel. +88-02-7217330 > Fax. +88-02-8251575 > Support Cell: +88-017-1474-3251, +88-017-1474-3385 > Support MSN ID: support@xxxxxxxxxxxxxxx > Email & MSN ID: mahbub@xxxxxxxxxxxx ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________________ Posting: mailto:Openh323gk-users@xxxxxxxxxxxxxxxxxxxxx Archive: http://sourceforge.net/mailarchive/forum.php?forum_id=8549 Unsubscribe: http://lists.sourceforge.net/lists/listinfo/openh323gk-users Homepage: http://www.gnugk.org/
