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--- RE: Cisco IP phones losing connection (http://www1.pbxes.com/forum/threadid.php?threadid=1375200534)

Cisco IP phones losing connection

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

RE: Cisco IP phones losing connection

Have you set the registration interval of each phone to a reasonably short period, say 60 secs. That should give you a clearer idea of whats going on.
Just looked at the manual, they may be set to 60 secs already.
Other thing to check out is the router, they don't all behave the same. I personally find the cheap and cheerfuls work well strange as it sounds.
Regards

RE: Cisco IP phones losing connection

Thanks for the tip - I'm trying that out on some of the phones to see if the situation gets better...

RE: Cisco IP phones losing connection

Registration intervals should not be set too short. Consequently the extensions would permanently be in a status in between of being registered, and unregistered. Please use values of at least several minutes, and see if that helps.

RE: Cisco IP phones losing connection

If that doesn't help then I would definitely try one of the phones on a different ISP/Router (like at home) and see how it behaves then.
Regards