Soundstation will not work on Voice VLAN

[Richard_Mace]

Hi,

We have a few Soundstation Duo's and IP 5000's which work fine on our data VLAN (boot and sign in fine) but we have put in option 128 (VLAN-A=116;) into DHCP, so that we can get all our phones on our voice VLAN, 116, and now the phones get "network down" when they boot and will not sign in.

The VVX series work fine on this VLAN.

I made one port on our switch to be on this voice VLAN, and plugged the phone directly into this port and the phone boots and signs in fine. The problem occurs when I plug in our phones at the desk.

I've tried various Soundpoint Duo's, and different network points/cables, the problem still occurs. I have also tried giving the phone a static IP but the issue still occurs

Can anyone think of anything else that I can try ?

Thanks

[SteffenBaierUK]

Hello Richard_Mace,

welcome to the Polycom Community.

It is always useful to include the currently used software version as issues experienced may already be addressed in a newer release.

This also allows yourself and others to check against current software release notes.

Therefore the Polycom VoIP FAQ contains this post here:

Question: How can I find out my SIP UC Software Version or the BootROM Version of my Phone?
Resolution: Please check here

Please ensure to provide some feedback if this reply has helped you so other users can profit from your experience.

Best Regards

Steffen Baier

Polycom Global Services

[Richard_Mace]

Hi,

Version: 4.1.1.0260

Updater : 5.1.0.85063

[SteffenBaierUK]

Hello Richard_Mace,

not that it should matter to the issue at hand but UCS 4.1.0 or 4.1.1 is for LYNC only so if you use SIP I recommend UCS 4.0.7 instead.

We had an issue in the past (UCS 5.0.x) where CDP packets would cause VLAN issues.

In order to troubleshoot your issue we would require a wireshark trace and if possible a log from the phone (Syslog).

Please work with your Polycom reseller so they can raise a ticket with us.

Please ensure to provide some feedback if this reply has helped you so other users can profit from your experience.

Best Regards

Steffen Baier

Polycom Global Services

[Richard_Mace]

Thanks for the reply. We are using these for Lync only, is this the correct version that I am on?

I will go through our reseller to proceed with more troubleshooting

regards

[Richard_Mace]

This was resolved by removing the DHCP option that moves the phone to the voice vlan and use CDP instead.

We enabled CDP on our switch and it automatically moved the phones to the voice VLAN