Hi All,Just having some trouble with a Draytek 2130. Just put a phone system in to a site and they had one of these at their main branch. Our system has a feature called SP-NET which is just a linking protocol Samsung use to link multiple PBX's. It doesn't use standard SIP but rather a group of ports for doing the different jobs. Mainly 6000 for signalling/call setup, 6100 for the BLF's and trunk selection and then ports 30000-30031 for the RTP.Now it seems the that call is being set up. I see that progress no problem. But the issue is there is no RTP getting back in to the system on the main end.I have put an 'allow all' rule in to the access control list just to see if it makes a difference but it doesn't seem like it. Is there somewhere else I can get the the firewall rules? Maybe on the CLI?Any help much appreciated.Sam
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