@Pops.1953 wrote:
I feel your pain. I also work for a hospital system and in the 2 years or so that we have been using the 8821 phones we have RMA-ed probably over 200.
I believe the Microphone maybe an actual hardware failure. One good drop and it's toast.
The 7925 models were much more durable in this regard. And better in every other way as well.
Something we have been trying for the "losing programming etc" issues and it "seems" to help some. is....
After doing a factory reset,
Under WLAN configuration
Under #4 instead of 802.11 mode : Auto / change it to 5 GHZ
In our system the 2.4 GHZ channel is jam packed with too many devices.
Under #5 On call power save ; Disable it.
Hope this helps; let me know if it does or not.
Thanks for this suggestion, Pops. Do you do a factory reset out of the box, before you deploy the phones, or when only you notice that the phones have lost their settings? I get this periodically, too. Phones losing their settings.
How has Cisco handled your RMAs? They've now told me that since the phones are out of warranty, they won't RMA the ones with bad microphones. This is rather frustrating as we've only deployed them since October, 2017, but they were purchased from our resellers in May, 2017.
Out of the 200 (ridiculously high number btw) that you RMA'd how many of he replacement devices did you RMA? I've had to RMA a handful of replacements. There's definitely something inherently wrong with these phones!
Just curious what firmware you're all running. Not that it's made a difference on which phones have had bad mics, but I'm currently running on sip8821.11-0-3SR6-15.
