I wish I could be more help with this, unfortunately I don't have a lot of experience with Sip and the Summit. I suspect that the Summit is using two or possibly three ip addresses to make both the cpu, the viou and the 48 port card function? I have worked with voip and sip with the SBX. Sometimes when there is no talkpath with the SBX, it is caused by a port or ports problem with an ip address, the voice protocol is being blocked by a router/firewall.

Last edited by Derrick; 10/30/17 08:57 PM.
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