You are assisting a customer to troubleshoot a SIP early-offer problem with a SIP service provider.
You have enabled Cisco CallManager trace and set the debug trace level to Detailed for SIP Call
Processing trace on their standalone Cisco Unified Communications Manager 9.1 system. Using
the RTMT tool, your customer has remote browsed to the Cisco UCM and asked you which trace
file to download.

A.
SDL

B.
SDI

C.
CCM

D.
Call logs

E.
Traces

Explanation:
SDL files log SIP messages from CCM.