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6401 · Question #59
6401 Question #59: Real Exam Question with Answer & Explanation
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Question
What is the minimum prerequisite that an external phone must fulfill to access mobile call control?
Options
- Asupport for the ISDN protocol
- Bsupport for the GSM standard protocol
- Csupport for multi-channel capability
- Dsupport for DTMF capability during a call
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