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Hi everyone, having an issue on an SV8100 box where they have a Polycom IP 500 SIP conference phone that registers properly and can make outgoing calls but can't receive incoming calls. The local extensions rings when called but when you pick up it just hangs up the phone and the person calling still hears ringing until it times out with "sip out of range" which seems to be expected.

Does anyone have any ideas?

Licensing seems to be correct

I've tried setting up a soft console (MicroSIP) on a local computer and it can register the extension fine and when someone calls it the soft console rings but does the same thing when I attempt to answer basically hangs there.

Basic setup was just connecting the user with the IP Address from 10-12-09 with the port 5070 appended to it. I cleared registration status and removed the whole extension and re-added with no luck.

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UDP only in the setup of the polycom. Do you have other IP phones working? What software level, early versions used a separate license for 3rd party SIP devices.

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"Basic setup was just connecting the user with the IP Address from 10-12-09 with the port 5070 appended to it."

I never had to append the port to the IP address of the 8100. I wonder if that may be preventing the Polycom from from using additional ports?

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Originally Posted by DrPbx
UDP only in the setup of the polycom. Do you have other IP phones working? What software level, early versions used a separate license for 3rd party SIP devices.


Hi Yes, selected UDP only on the polycom. The only other working IP phones are NEC DT700 which seem to work without a problem.

I'm trying this on the NEC Umobility iPhone App and a SIP client on my computer and both are the same issue. Can make outbound calls but cannot receive.

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Originally Posted by PFD45
"Basic setup was just connecting the user with the IP Address from 10-12-09 with the port 5070 appended to it."

I never had to append the port to the IP address of the 8100. I wonder if that may be preventing the Polycom from from using additional ports?


I tried without appending the 5070 port and the device doesn't appear to register without it. Same with the other SIP clients I am trying.

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It may be worth noting that in the PCWebPro config I tried both setting and clearing a password for the extension and that seems to have no effect on the SIP clients being able to connect or not. Whether they use a password or not doesn't add or prevent anything.

Last edited by Mikec2015; 11/23/15 10:52 PM.

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