What phone load were you on before? I doubt that the service pack caused an increase in echo, since phones do not touch the call manager once they are connected. Phone firmware, on the other hand, could potentially cause a problem. You could experiment and go back to 303020100 on a few phones.
In general, echo should never exist on the LAN. How is your LAN configured? (VLANs, trunks, etc) What equipment do you use? Any other information that may be relevant?
I downloaded the new phone load and it did update the phone load to 09. I've put that load on a few test phones but had to be out of the office for a few days so I'll put it on all the phones when I'm back on Monday.
BTW, No one has head sets and I have noticed echo on calls from 6506 to 6506 port and also 3500 to 3500 port. All on same switch. I've tried the volume below 75% and it does help but as some people have to have the volume turned up to hear, it's not a usable solution.
I have a client with a hearing problem and everyone calling him complained of echo. The fix was the 209 load. The problem is feedback from the handset speaker to the mike. The 209 load has an echo canceller coded in to solve the problem.
You have reached the Cisco Logistics Support Center.. To Check Status of
your RMA, visit Product Returns & Replacements (RMA). Need help? Contact
us by Phone or Email. North Americas Phone: 1800 553 2447 Option 4
Email: firstname.lastname@example.org Europe Phone: +3...
The short answer is that you don't.... That isn't entirely true while at
the same time it kind of is, but for the most part you don't configure
the softkeys. You enable or disable them via TCL. Here is the long
answer. Be sure to read the whole thing or e...
Topology: IP Phone > Switches > Microsoft NPS setup to forward 802.1x
proxy to > ISE 2.1 patch 3 Authentication: EAP-TLS using Cisco MIC SANs
Phone Models 802.1X support? 802.1x flavor Addtl Comment EAP-MD5 EAP-TLS
Cisco 3905 Y Y N Cisco 6911 Y Y N Cisco ...