Triple

Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).

Phrase: Single Radio Voice Call Continuity | Statement: [SRVCC, fullName, Single Radio Voice Call Continuity]

Target entity: Single Radio Voice Call Continuity
Context triple: [SRVCC, fullName, Single Radio Voice Call Continuity]

• A. SRVCC chosen
  SRVCC (Single Radio Voice Call Continuity) is a mobile network feature that enables seamless handover of ongoing voice calls from LTE or VoLTE to legacy circuit-switched networks like 2G or 3G.
• B. Interrogating Call Session Control Function
  Interrogating Call Session Control Function is a core IMS network element that serves as the initial contact point for SIP signaling, handling routing, registration queries, and interaction with subscriber databases in IP-based telephony systems.
• C. CSFB (Circuit Switched Fallback)
  CSFB (Circuit Switched Fallback) is a mobile network feature that allows LTE devices to temporarily switch to a legacy 2G/3G circuit-switched network to handle voice calls and SMS.
• D. Radio Network Controller (RNC)
  The Radio Network Controller (RNC) is a key 3G mobile network node that manages radio resources and controls multiple base stations within the UMTS radio access network.
• E. Time Division Multiple Access
  Time Division Multiple Access (TDMA) is a channel access method that divides a communication medium into time slots so multiple users can share the same frequency without interference.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.