350-801 · Question #272
After an engineer implements the FAC and CMC features together, users report that calls take almost one minute to complete and that they occasionally hear the reorder tone. Which two actions address…
The correct answer is A. Advise the user to press the "#" button after dialling the FAC and CMC codes. C. Adjust the T302 timer from the default of 15 seconds to 5 seconds to shorten the interdigit timer. Slow call completion and reorder tones when using Feature Access Codes (FAC) and Client Matter Codes (CMC) are typically caused by interdigit timeout issues, which can be resolved by signaling dial completion or adjusting timers.
Question
After an engineer implements the FAC and CMC features together, users report that calls take almost one minute to complete and that they occasionally hear the reorder tone. Which two actions address this issue? (Choose two.)
Options
- AAdvise the user to press the "#" button after dialling the FAC and CMC codes.
- BChange the code if the problem persists.
- CAdjust the T302 timer from the default of 15 seconds to 5 seconds to shorten the interdigit timer.
- DDo not wait for the tones immediately dial the FAC and CMC
- EAdvise the user to hang up and try again.
How the community answered
(31 responses)- A77% (24)
- B3% (1)
- D6% (2)
- E13% (4)
Why each option
Slow call completion and reorder tones when using Feature Access Codes (FAC) and Client Matter Codes (CMC) are typically caused by interdigit timeout issues, which can be resolved by signaling dial completion or adjusting timers.
Pressing the '#' button after dialing Feature Access Codes (FAC) or Client Matter Codes (CMC) immediately signals dial completion to Cisco Unified Communications Manager (CUCM), preventing the system from waiting for an interdigit timeout before processing the dialed digits.
Changing the FAC or CMC code itself does not address the underlying issue of interdigit timeout; it only changes the dialed string.
The T302 timer controls the interdigit timeout in CUCM. Reducing this timer from its default (e.g., 15 seconds) to a shorter duration (e.g., 5 seconds) forces CUCM to process the dialed digits more quickly after FAC/CMC, resolving delays and preventing reorder tones caused by long waits.
Advising users to not wait for tones and immediately dial FAC and CMC does not address the system's interdigit timeout processing; it's a symptom management, not a solution.
Advising users to hang up and try again is a generic troubleshooting step for transient issues, not a systemic fix for consistent interdigit timeout problems.
Concept tested: FAC/CMC dialing, interdigit timers, T.302 timer
Source: https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/12_5_1/systemConfig/cucm_b_system-configuration-guide-1251/cucm_b_system-configuration-guide-1251_chapter_01001.html#d24958e1194a1083
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