Good morning,
I have scoured the archives and cannot find any reference to my problem. I have a two server 4.2.1 HA cluster. Station to station and station to analog gateway calls are fine. I just installed some Bandwidth.com SIP trunks, a gateway for them and configured the SBC for internet calling, NAT, etc. I have set the RTP port range on the primary server to 30000-31000 and on the secondary to 31000-32000 and set both to "Conservative". I am using a Cisco router (IOS, ACL) as gateway, NAT and Firewall. All incoming calls are answered by IVR AA's and I am experiencing intermittent incoming call failures. The abbreviated call flow are: good call: > Invite < 100 trying < 200 OK Contact: <sip:~~id~mailto:bridge@208.public_IP_in_SBC_Setup:5080;transport=udp> > ack (from the BW 216.82.224.202 address) bad call: > Invite < 100 trying < 200 OK Contact: <sip:~~id~mailto:bridge@10.private_IP_of_Primary_Server:5080;transport=udp> < 200 OK Contact: <sip:~~id~mailto:bridge@10.private_IP_of_Primary_Server:5080;transport=udp> < 200 OK Contact: <sip:~~id~mailto:bridge@10.private_IP_of_Primary_Server:5080;transport=udp> I never get the ACK from BW.com because the contact IP is a Private one (per BW.Com). Is this a setup problem, BW.com Compatibility issue or a bug that an upgrade will fix or ??? Any guidance is appreciated. Thanks, Ray _______________________________________________ sipx-users mailing list sipx-users@list.sipfoundry.org List Archive: http://list.sipfoundry.org/archive/sipx-users/
