A POTS (PSTN/PBX) user places a call (through Cisco router/gateways) and does not hear a ringback tone before the call is answered. Which of the following actions would probably correct the situation?

Question

Options

• AConfigure the originating gateway to respond PI=1 to force ringback
• BEnsure that all intermediate devices carry the correct Progress Indicator without modification
• CEnsure that the terminating gateway has not dropped the Progress Indicator signal
• DConfigure all intermediate devices to repeat the Progress Indicator signal
• EConfigure the terminating gateway to send a PI=8 in the Alert message

• A
  3% (1)
• B
  15% (5)
• C
  3% (1)
• D
  6% (2)
• E
  73% (24)

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