Question: What is the required codec for transporting voiceband data traffic on IMS/NGN Terminations, and what is its implication?
Option 1: ITU-T Recommendation G.729, which allows for simultaneous voice and fax transmission.
Option 2: ITU-T Recommendation G.711, which is specifically mandated for Voiceband Data (VBD) codec, enabling detection of VBD stimuli for mode switching.
Option 3: ITU-T Recommendation H.263, which is primarily used for video compression in telecommunications.
Option 4: ITU-T Recommendation V.152, which outlines procedures but is not a codec itself.
Explanation: The correct answer is Option 2 because ITU-T Recommendation G.711 is the mandated VBD codec for transporting voiceband data traffic on IMS/NGN Terminations, crucial for enabling mode switching between Audio and VBD modes upon detecting voiceband data traffic, utilizing VBD stimuli detection.