A voice engineer is troubleshooting an issue that involves incoming calls to POTS lines. Which command
verifies the digits that are received by voice-port?
A.
debug voip dial-per
B.
debug vtsp session
C.
debug vtsp dsp
D.
debug call treatment
E.
debug voice protocol
The answer should be C.
http://www.cisco.com/c/en/us/support/docs/voice/h323/14081-voip-debugcalls.html
hisulley,
I believe session (Letter B) is correct based on the text below from the article you mentioned.
debug vtsp dsp —Earlier than Cisco IOS Software Release 12.3, this command displays the digits as they are received by the voice-port. However, in Cisco IOS Software Release 12.3 and later, the output of the debug command no longer displays the digits. The combination of debug hpi detail and debug hpi notification can be used to see the incoming digits.
Thus in current code, the digits are not displayed, and since the test is likely referencing current code the option is therefore ‘A’. If you look at the output of ‘debug vtsp session’ you’ll see a line that states: “inband_detect=1 digit_relay=2 “