How to create a LAN QoS for VoIP telephony solution using the SF300-48P

[CARLOS RANGEL]

Can you please help on how to setup QoS parameters for IP phone end points that are having issues dropping packets, etc  when calling the public network.

[Brandon Svec]

This may help: http://sbkb.cisco.com/CiscoSB/ukp.aspx?vw=1&docid=4e4da1d26cc648e680334ac6dbbc9ad8_Configuring_QoS_Basic_Mode_on_Cisco_300_Series_Managed_Switc.xml&pid=2&respid=0&snid=10&dispid=0&cpage=search

and

http://sbkb.cisco.com/CiscoSB/ukp.aspx?vw=1&docid=d19b7db20a5c4c8291117156d2c22895_Configuring_QoS_Advanced_Mode_on_Cisco_300_Series_Managed_Sw.xml&pid=2&respid=0&snid=10&dispid=0&cpage=search

and

http://sbkb.cisco.com/CiscoSB/ukp.aspx?vw=1&docid=72cfcb679202425e9f0a825ad92f0ed9_Queue_Statistics_on_Cisco_Series_Managed_Switches.xml&pid=2&respid=0&snid=10&dispid=0&cpage=search

But in my experience, you issue is probably either misconfiguration on firewall or upstream provider or packet loss on WAN link.