On page 88 of the "Designing the IP Telephony Network" guide from Cisco it is stated that SoftPhone is Layer 4 therefore traffic classification can only be done at first Layer 4 device in network. I agree with this however... when using NICs that support traffic classification (Intel, 3Com) I believe you can still classify SoftPhone traffic at the PC it originates from. Provided SoftPhone apps. is using a fixed port nr.
1. For audio? No, it's a random UDP port between 16384 and 32767.
2. None here.
Keep in mind that with the proper switch capabilities (I will use a Cat6k as an example) that you can set COS (and I believe DSCP) -- based on the TOS coming in from the switchport, and Cisco IP SoftPhone should be setting the IP Precedence to 5.
SIP traces provide key information in troubleshooting SIP Trunks, SIP
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Please find the attached HTML document, download and open it on your PC.
This provides an easy to use form where you simply answer a few
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CUCM Database Replication is an area in which Cisco customers and
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