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** DISCLAIMER ALERT ** I have not tested any of these methods. It seems that when you are doing the 123456789*0# routine, you are only performing a "soft reset". It sounds like in your case you need to perform a *HARD* reset. However --- you will need to have a private TFTP server up and...

You have 18 dead phones? Out of how many total? That seems like an awful lot to go bad on you ... unless maybe you are dealing with thousands of handsets. Another thought - are you out of power on the switch? I wouldn't think so if you hooked up another phone and it works fine. But if you...

I was working on setting up an Intercom feature this week between a 7965G and a 9971. In my testing environment I used two 7965G devices and it worked fine. But repeating the same configuration with my 9971 didn't work. When calling with the intercom, I got the "this call cannot be completed"...

Incidentally ... this was the one line that I had to enable on my voice router to enable modem passthrough. mgcp modem passthrough voip mode nse

Another good piece of advice that I have used, is to install your new firmware but then immediately switch back to the old firmware for all devices. So you can conduct testing on one or more first! Before you install the new firmware - go into Device > Device Settings > Device Defaults. Then...

I second gnrslash4life's advice. I had a similar issue, only once. Try getting onto the switch that your phones are connected to and do a 'term mon'. I found that when plugging my phones in, the switch was screaming something about an incompatible vendor power option ... or something like...

Getting faxing working for me with a VG-224 and my ATA-187's was a pain. I got a lot of conflicting advice too. My reseller support said to lower everything to 14400 ... but when I opened a TAC case with Cisco, that tech said that with "modem pass-through" we should be able to run it at top...