I have 8 Cisco 303 IP Phones in an office behind a router. I find that at any time about three of these will not be registered to PBXes.org for some reason (the light for the line turns orange instead of green).
Is there anything I should look to change in the settings on the phones, or other things to check?
At different times different phones will be working.
I changed the port numbers to use a range from 5061 to 5072 (different one for each phone) and this appears to have maybe helped. Again, are there any other tips for keeping the connections constant?
Many thanks
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