Based on this configuration of endpoints and users, which ports are required?

You have completed your design for a customer who needs two analog lines for fax, reusing 50 digital telephones from their old system, 425 IP telephones (200 from their old system and 225 new), and 50 new SIP mobile users.

Based on this configuration of endpoints and users, which ports are required?
A . Two analog ports and 50 digital ports In a IP Office 500 V2 gateway and an IP Office server, 225 customer provided PoE ports In a Layer 2 switch
B . Two analog ports and 50 digital ports in a IP Office 500 V2, 475 customer provided PoE ports In a Layer 2 switch
C . Two analog ports and 50 digital ports In a IP Office 500 V2 gateway and an IP Office server, 425 customer provided PoE ports in a Layer 2 switch
D . Four analog ports and 50 digital ports In a IP Office 500 V2, 425 customer provided PoE ports In a Layer 2 switch

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Answer: A