> we have installed 4.0.2-016420 on Centos 5. We have applied > latest patch for sipXbridge too (4.0.4). > > We are experience a problem with audio on our calls. > > When we do internal calls from extension to extension phones > are ringing, but we don't have audio when we pickup the > phones.
Are these phones behind remote NATs or not? In this case we don't have set STUN on the phones. > Especially this happens using hardware over IP phones. Using > softphones seems to be ok. When we set STUN on hardware phone > and the others, then the voice is comming back anad > everything is ok. This problem appear if we call to a real > number and on the line is put hardware voip phone. Can you specify the brand/model/firmware version of phones you are using? Also, what is the brand/model/firmware version of the remote NATs you use? Also please be sure to disable any SIP ALGs that may be enabled on your remote NATs. You should not have to run STUN on the phones. In fact, we strongly recommend that you don't if you're using sipXecs's remote NAT traversal feature. > > How to deal with this problem? I don't see any problems in > the logs. I know that this is related with NAT Traversal. > > Server is not behind NAT and it has properly configured DNS > records, and it uses static IP. > > My NAT settings on sipxecs are this way: > > System -> Internet Calling -> NAT Traversal -> Enable NAT > Traversal (checked), Server behind NAT (not checked). > > System -> Servers -> choose the server -> NAT -> Specify IP Address. > ( as i understand, this option is related to way if Server is > behind NAT or not, or if server has dynamic address. I > suppose that this setting does not have any relation with > remote workers behind NAT). This setting is used by the remote NAT traversal feature. Just put the public IP address of your sipXecs in there. > > Is there a way to set in sipxecs remote workers which stun > server to use, or something like this or there is another solution? > > So how to go with this problem? Please verify that you have followed all the steps in http://sipx-wiki.calivia.com/index.php/Configuring_remote_workers_cheats heet Pay special attention to step #3. In your case, you need to remove all the default values and add the subnet that sipXecs is a part of. > > I found this thread: > http://www.mail-archive.com/sipx-users@list.sipfoundry.org/msg 05291.html > > My problem is the same or very similar. What i expect is to > not be necessary to set on the phones (hardware, softphone, > etc.) stun. I suppose that this functionality must be covered > from sipXbridge, but maybe i'm wrong. > > If you need log parts, please tell me and i will post logs here. > > Thanks in advanced! > > > > _______________________________________________ > sipx-users mailing list sipx-users@list.sipfoundry.org List > Archive: http://list.sipfoundry.org/archive/sipx-users > Unsubscribe: http://list.sipfoundry.org/mailman/listinfo/sipx-users > sipXecs IP PBX -- http://www.sipfoundry.org/ > _______________________________________________ sipx-users mailing list sipx-users@list.sipfoundry.org List Archive: http://list.sipfoundry.org/archive/sipx-users Unsubscribe: http://list.sipfoundry.org/mailman/listinfo/sipx-users sipXecs IP PBX -- http://www.sipfoundry.org/
