Implementing and Operating Cisco Collaboration Core Technologies (CLCOR) — Question 337

All calls that involve external parties must be based on a format to simplify the International multisite dial plans when globalized call routing is used. Which standard must be followed to implement normalized call routing?

Answer options

• A. Internal to External - Calling-party number: E.164 - Called-party number: E.164
• B. External to Internal - Calling-party number: E.164 - Called-party number: E.164
• C. External (local number) to Internal Calling-party number: E.164 - Called-party number: E.164 (localized, subscriber)
• D. Internal to External (local number) Calling-party number: E.164 (localized, subscriber) Called-party number: E.164

Correct answer: A

Explanation

The correct answer is A, which specifies the format for calls going from internal to external parties, ensuring both calling and called-party numbers are in E.164 format. Options B and C deal with external calls, which do not align with the requirement for internal to external routing. Option D deviates from the necessary E.164 standard for the calling-party number in the internal to external scenario.