You need to provide us with a little more information. Please post the entire config minus passwords.
Typical problems point to using the wrong compression for the voice. Are you using G711 or G729?
Another common error is that you must also have a bandwidth statement on the serial interfaces. Without a bandwidth statement, the software believes that it has the default bandwidth for the interface, 1.544mbps and it does not see any congestion problems.
The third is that for such a slow link, it would be good to emulate frame-relay so that you could do fragmentation of the large data packets.
The first problem I see is that you are using the "Bandwidth" command instead of the "priority" command. The priority command will create a strict priority queue for the voice traffic, so queue latency is reduced.
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: email@example.com 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 ...