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cisco ATA 186 poor call quality and ping times

Hey i dont use ATA's much, except for faxing. However today i had to deploy one for a client and it failed miserably with horrible call quality. I was wondering if anyone knew why. First piece of evidence is that my ping time across the lan to these ATA's is 60-70ms ( time=65ms TTL=249 ), whereas desk phones like a 8841 are all 1ms. All computers on the lan are 1-3ms. Only the ATA's are poor quality pings and are on the same vlan as the phones so it doesnt make sense to me.


Below is the config i am using for the ATA's. Like i said, doesnt matter what switch on site i plug them into they are all doing the same thing. I have 6 ata's. For faxing it does not seem to matter, but for voice it does matter, which is why i never noticed the call quality problems before.


description "manually configured ATA"
 switchport mode access
 switchport block unicast
 switchport voice vlan 2
 switchport port-security maximum 3
 switchport port-security maximum 2 vlan access
 switchport port-security violation  restrict
 switchport port-security aging time 1
 switchport port-security aging type inactivity
 switchport port-security
 load-interval 60
 power inline auto max 15400
 srr-queue bandwidth share 1 30 35 5
 priority-queue out 
 mls qos trust device cisco-phone
 mls qos trust cos
 no macro auto processing
 auto qos voip cisco-phone 
 storm-control broadcast level pps 1k
 storm-control multicast level pps 2k
 storm-control action trap
 nmsp attachment suppress
 spanning-tree portfast
 spanning-tree bpdufilter enable
 spanning-tree bpduguard enable
 ip dhcp snooping limit rate 15

a traceroute is one hop to our nexus router.


Any ideas? Is it because they are all running at 10mbps half duplex? is it a codec issue?

Gi1/0/47  " manually configur connected    1          a-half   a-10 10/100/1000BaseTX
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