sundance-communications.com/forum Forums TDM Business Telephone Systems Samsung Telephones & Systems OAS dropping SVC4 periodically

I have a 7400 with an OAS Card for Voip. All of a sudden SVC4 on the OAS (link to MP) drops out. Resetting the card gets it running again and the phone system works for about an hour or so, then it drops out again.

Any Ideas?

I had a similar issue, ended up being the customers switch was only a 10mb not 100mb. Moved it to a 100mb port and the problem went away

also check OAS firmware is corresponding with MP40 firmware, had a similar problem,MP40 had latest firmware and OAS had older firmware, upgraded OAS firmware and problem was resolved

As it turns out I had an ip conflict in my firewall. Based on the MAC address it is a Cisco linksys device. I am thinking my OAS and one of the routers in the building were asking for the same IP address. I saw in my firewall logs that the firewall was swapping the device that had the IP address every hour. I moved the static ip on the OAS to a number I know is unused and the issue has seemed to go away. When I get into the building tomorrow I will be on the hunt for the Cisco/Linksys device that matches the MAC I pulled from my firewall logs. Then that device will get a stern talking to.

As a side note I might have bonered this one. I had originally set my DHCP range to include the static ip's I had assigned to the MP and the OAS. Should have kept them out of the DHCP pool.

Walked in, right to the router I thought it was, mac matched. Reconfigured and should avoid the IP conflict now.