CLCOR Cloud And Hybrid Services Practice Question
You are deploying Webex Calling with Local Gateway. Which component must be configured to allow PSTN connectivity for users who have migrated from on-premises CUCM to the cloud?
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
✓
SIP Trunk via Local Gateway
The Local Gateway (LGW) uses a SIP trunk to connect the Webex Calling cloud to on-premises PSTN gateways or Session Border Controllers (SBCs).
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Webex Edge Connect
Why it's wrong here
This is for dedicated bandwidth, not local PSTN breakout.
- ✓
SIP Trunk via Local Gateway
Why this is correct
Local Gateway is the architectural component required for local PSTN access.
- ✗
Webex Calling Cloud Connected PSTN
Why it's wrong here
This is a cloud-native provider option, not a local gateway.
- ✗
Unified Border Element (CUBE) API
Why it's wrong here
CUBE is the hardware, but the architectural entity is the LGW.
About these practice questions
Courseiva writes every CLCOR question from scratch — 263 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. 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.