We have several Panasonic KX-TGP500 / KX-TGP550 phone sets out in service and they are all getting the same error happening and that is the phone will start ringing and when it is answered there will be nobody there and the display will just say "Asterisk"... one other thing is that the phone will not stop ringing untill it is answered... somewhat of a problem with people at 2 am and a home office.
we are a Panasonic dealer and have called them a couple times and waited on hold for over 2 hours and did not get picked up, so we have not been able to get their take on this.
we are using a MTE box
anyone have any experience with this happening
the software they are all on is 12.04
chris
Submitted by eeman on Sun, 02/13/2011
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it might actually be partly due to the firewall?? I have a customer complaining about the same thing on their polycom phone during the middle of the night. No other phones even in the same tenant are experiencing the issue, just this one customer. I believe he has one of those netgear wireless routers as his 'firewall'.
I have that TPG500 at my house with 2 extensions for testing purposes. I have not had an issue with them, but I have a /28 routed subnet at my house so even though they're behind a pfSense firewall its not doing NAT.