Go back to 350-030 - CCIE Voice Written Exam

Question :-

In a VoIP deployment, which two protocols satisfy the following three requirements? (Choose two.) Requirement 1: the protocol has a mechanism for a centralized dial-plan Requirement 2: the endpoints are considered to be unintelligent Requirement 3: the protocol is text-based
SIP
H.323
MGCP
SCCP

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