troubleshooting Question

Cisco QOS

Avatar of stephenHenderson123
stephenHenderson123Flag for United Kingdom of Great Britain and Northern Ireland asked on
RoutersVoice Over IPIP Telephony
5 Comments1 Solution2403 ViewsLast Modified:
Hello, I have been asked to set up QOS on our cisco 881 router for our new phone system, and I was wondering if someone would be able to help as I’m not 100% confident is setting QOS, I understand the basic concept but I am unsure how to set it all up correctly. Any help would be greatly appreciated

Router Bandwidth is 10MB, so I’m planning on giving 50% to the phone system, unless there is a better way?

And this is what I was told required QOS
SIP (signalling) - Class 3, AF31, DSCP: 0x1A, TOS: 0x68 RTP (media) - Expedited Forwarding, EF, DSCP: 0x2E, TOS: 0xB8

So this is my start on the QOS settings

ip access-list extended PhoneSystem
 permit tcp any any range ?????

class-map match-any VoIP
match access-group name PhoneSystem

policy-map MyQoSPolicy
class VoIP
  priority percent 50
  set dscp ef

class class-default
 fair-queue

interface FastEthernet4
bandwidith 10240
 description  WAN Interface to the Internet running at 10240
 ip nbar protocol-discovery
 service-policy output MyQoSPolicy
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