Which of the below reasons is true?

Calls drop right after the called party tries to answer the call. Which of the below reasons is true?

Question:

Which of the below reasons is true?

Options:

Phone A is using SCCP and phone B is using SIP

Firewall is blocking RTP packets

An incompatible MTP type is allocated to the call

Codec are mismatched between phones

Correct Answer

The Correct Answer for this Question is

Codec are mismatched between phones

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