Your company has a Lync Server 2013 infrastructure that contains four servers. The servers are configured as shown in the following table. The Lync Server infrastructure contains a hardware load balan

Your company has a Lync Server 2013 infrastructure that contains four servers. The servers are configured as shown in the following table. The Lync Server infrastructure contains a hardware load balancer named HLB1. The company has an IP-PBX. The IP PBX does not support media bypass. The IP-PBX has a SIP trunk configured. Each user has a desktop phone that connects to the IP-PBX. Each laptop user has a Lync-certified headset. The company plans to implement Enterprise Voice and to relocate the SIP trunks to the Lync Server infrastructure. You need to recommend a Mediation Server deployment to meet the following requirements: - Internal users must be able to place outbound calls from their desktop phone if a single server fails. - Remote users must be able to place calls to any desktop phone if a single server fails. - The degradation of call quality must be minimized during peak usage hours. What should you recommend?