CLCOR ON Premises Call Control Practice Question
Which TWO settings in the SIP Profile are crucial for interworking with a PSTN gateway that does not support PRACK?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Enable Early Offer
If a gateway doesn't support PRACK, the SIP Profile must be configured to disable it or ensure the CUCM handles the reliability requirement locally.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Set the Device Pool to 'None'.
Why it's wrong here
This is not a valid setting.
- ✓
Enable Early Offer
Why this is correct
Early offer is often required for interworking with legacy PSTN gear.
- ✗
Use H.323 for the trunk.
Why it's wrong here
This changes the protocol entirely.
- ✓
Disable PRACK
Why this is correct
Disabling PRACK ensures compatibility with endpoints that do not support it.
- ✗
Increase the Keepalive interval.
Why it's wrong here
This is for monitoring, not interworking.
About these practice questions
One of 263 original CLCOR practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official Cisco exam blueprint
This CLCOR practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CLCOR exam.