IBLs feature that is unavailable in IBLc
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Visual Call Waiting
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Auto-Attendant
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Call Trace
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Outgoing Caller ID
B
Correct answer
Explanation
Auto-Attendant is a feature available in IBLs (Integrated Business Lines) but unavailable in IBLc (likely a different tier or version). Auto-Attendant automatically answers incoming calls and presents callers with menu options to route their call. Visual Call Waiting, Call Trace, and Outgoing Caller ID are typically available in both IBLs and IBLc.