I have been battling this for awhile at a customer site. Site has IP office R9.1.7. I have the same setup at my office using same sip provider and same release of ip office with no trouble. The sip provider recently changed to a new peering sip server. I believe this is the trouble. I pointed my customer's sip trunks to my office and internet and my sip trunks work and my customer does the same thing with the drop after 32 seconds. I called the provider and they did not have a reason why. They say they see back and forth 200 messages then a bye message. I have attached a monitor trace of the dropped call. Any help would be greatly appreciated.
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drop sip calls after 32 seconds
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fieldtechonIR
IS-IT--Management
Yes I open the ports that the SIP provider uses. most seem to use 10000-20000. I would open them only to the IPs of the SIP provider's servers. I assume you are using password authentication on your trunk? also what SIP provider are you using?
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I have this working now but every night around midnight the sip trunks go out of service. I tried rebooting the firewall and that did not work. When I reboot the system the calls will work till around midnight and same thing. Is there any setting in the IP Office that does any sort of maintenance or something that would cause this.
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