Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

Cisco Soft phone traffic path

Just some clarrification required

My understanding is unlike IP desk phones that have a dedicated vlan as per below, the soft phone traffic will go over our data network?

We have compression appliances that sit between us and the provider that exclude our vx subnets, what ports would I need to exclude for the voice traffic?

Should the mls qos trust device cisco-phone be replaced with the soft phone equivilent?

interface GigabitEthernet0/4

switchport access vlan 16

switchport voice vlan 106

srr-queue bandwidth share 10 10 60 20

srr-queue bandwidth shape 10 0 0 0

queue-set 2

priority-queue out

mls qos trust device cisco-phone

mls qos trust dscp

auto qos voip cisco-phone

spanning-tree portfast

Thanks in advance!

Brendan

1 ACCEPTED SOLUTION

Accepted Solutions
Hall of Fame Super Silver

Cisco Soft phone traffic path

Correct, softphone traffic will run over your data vlan, you need include your SCCP port TCP 2000, or SIP TCP/UDP 5060 if running SIP firmware, as  to the RTP traffic it uses UDP ports 16384 32767.

HTH,

Chris

5 REPLIES
Hall of Fame Super Gold

Cisco Soft phone traffic path

You don't need any QoS configuration on switches. Doing that will only cause drops and other unexpected problems.

Limit QoS config, if really needed, to routers or devices facing WAN.

Hall of Fame Super Silver

Cisco Soft phone traffic path

Correct, softphone traffic will run over your data vlan, you need include your SCCP port TCP 2000, or SIP TCP/UDP 5060 if running SIP firmware, as  to the RTP traffic it uses UDP ports 16384 32767.

HTH,

Chris

New Member

Cisco Soft phone traffic path

Thanks guys thats what I was after! I will add the ports mentioned and see how we go.

New Member

Cisco Soft phone traffic path

Chris, what does SCCP port TCP 2000 do as a description for our rule? We don't use SIP from this site so excluding UDP 16384-32767 should be all I need to exclude correct? Thanks Brendan

Hall of Fame Super Silver

Cisco Soft phone traffic path

This is signaling port for Skinny traffic, so if you are using Skinny phones use port 2000, if SIP use 5060.

Keep in mind there is other traffic to/from phone, such as TFTP, HTTP for web services, directories, etc.

Here is docuemnt listing all ports:

http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/port/8_5_1/portlist851.html

Chris

641
Views
0
Helpful
5
Replies
CreatePlease login to create content