Go back to 642-415 - UCAD - Unified Communications Architecture and Design Exam

Question :-

Ajax has contacted its LEC to obtain an additional range of DIDs. Their current DID range is 555- 6000 through 555-6999. The LEC can provide them with an additional range of numbers, 556- 6000 through 556-6999. The LEC is currently sending four digits inbound, so the two DID ranges overlap. What two things can be done to resolve this solution? (Choose two.)
Ask the LEC to send five digits.
Change internal calls to five-digit dialing.
Move to a six-digit dial plan to provide more dialing granularity for all extension numbers.
Contact an alternative carrier to see if it can provide a DID range that does not overlap with the current range.

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