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VoIP connectivity using a managed and unmanaged switch

I am working in a network where we have one 48-port managed switch that is supporting data and voice traffic.  Each is configured to run on separate VLANS (VLAN 2 & 3).  The VOiP phones are booted using PoE services configured on the associated switch port.  The managed switch has now run out of ports so I decided to extend the data by implementing two 24-port unmanaged switches.

I set aside two ports on the managed switch that recently been tested with connectivity to data/voice traffic.  
The port that was used for data traffic was connected to one of the unmanaged switches, and I verified network connectivity by connecting a laptop to one of the available ports.  The port that was used for voice traffic on the managed switch connected to a port on the other unmanaged switch.  I connected the VoIP phone to one of the available ports; however, the phone did not power up.  

Does this mean that in order for the VoIP services to work on the unmanaged switch it has to support PoE services?
Voice Over IP

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8/22/2022 - Mon