VVX201 and VVX150 BLF Key Configuration

Mike B - MetaLINK
Occasional Visitor

VVX201 and VVX150 BLF Key Configuration

We have been attempting to utilze the 2-line phones for 1 line with the second line key as a BLF for a ring group or user. However, we are unable to get this to function on the two line phones when they are functioning on VVX3##, VVX4##, VVX501, and VVX601.


We've attempted a number of different configuration changes and reviewed documentation to see if this functionality doesn't work for these phones... I'm unable to find anything saying this shouldn't work.


Specifics of the current settings:

Line 1 - registered and functional

Line 2 - nothing displayed; no registry entries assigned to the line.

Attendant Resource List method for BLF (functions on all VVX devices above a 201 - including 250)

attendant.resourceList.1.label="Call Park 1"

 We've attempted utilizing a platform generated resource list (works across other VVX device types without issue); manually assigning keys; flexible line key assignement; etc. None have worked


What field(s) may I be missing or are we wrong that BLF functionaility is available on VVX201 or VVX150 devices?



Message 1 of 5
Mike B - MetaLINK
Occasional Visitor

Re: VVX201 and VVX150 BLF Key Configuration

I should add that this has issue has existed on all firmware we've used on our system. Currently the VVX201 is on We have included 5.4 and 5.5 firmware versions in our testing

Message 2 of 5
Occasional Advisor

Re: VVX201 and VVX150 BLF Key Configuration

Hi Mike,


I've the very same issue on the VVX201 with the firmware 5.6.1.

Do you know by now if this is a limitation on those models ?

Note: the BLF is not working but the speed dial is working fine.



Message 3 of 5
Polycom Employee & Community Manager

Re: VVX201 and VVX150 BLF Key Configuration

Hello @lbonis ,


Welcome back to the Poly Community.

In our FAQ the phones are not listed:


Nov 4, 2011 Question: How can I setup a Busy Lamp Field / BLF with an Digium Asterisk SIP Server?

Resolution: Please check => here <


I get this information added to the Admin Guide


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

Best Regards

Steffen Baier


If official support is required please check how to phone or open a case here

The title Poly Employee & Community Manager is a community setting and does not reflect my role. I am just a simple volunteer in the community like everybody else. All posts and words are my own & do not represent the views of Employer.


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Please also ensure you always check the VoIP , Video Endpoint , Microsoft Voice , PSTN or other FAQ's in the different sections
Message 4 of 5
Occasional Advisor

Re: VVX201 and VVX150 BLF Key Configuration

Hi Steffen,


Thanks for this documentation which mention the following models:

"For VVX250, 300,301,310,311,350,400,401,410,411,450,500,501,600 and 601 the maximum number of BLF entries is 50." but doesn't mention the VVX201.


The feature "Flexible LineKey Assignement" is working fine on the VVX201 (ie https://documents.polycom.com/bundle/ucs-ag-6-1-0/page/c-ucs-ag-flexible-line-key-assignment.html).


I've also tested the following configuration on a VVX201 with the firmware 6.1.0:

  <reg reg.1.callsPerLineKey="1" ... />
<lineKey lineKey.1.category="line" lineKey.1.index="1" lineKey.2.category="BLF" lineKey.2.index="0">
<lineKey.reassignment lineKey.reassignment.enabled="1"/>
</lineKey> <attendant attendant.reg="1"> <attendant.resourceList attendant.resourceList.1.address="109" attendant.resourceList.1.label="109" attendant.resourceList.1.type="normal"> </attendant.resourceList> </attendant>

But the BLF still doesn't appear.


And the VVX201's Configuration Utility doesn't allow the definition of BLF, but only line (up to 2 SIP accounts).


Can you just confirm that the VVX201 doesn't support BLF ?

(I didn't find the information in the data sheet or the administrator guide)



Best regards,


Message 5 of 5