SoundPoint IP 320/330 and 321/331 BootROM & Firmware Updates

Occasional Visitor

SoundPoint IP 320/330 and 321/331 BootROM & Firmware Updates



I'm fairly experienced in networks, etc. but not that much in VoIP... so please bear with me. Long story short-> we have a couple of hundred Polycom SoundPoint IP 320/330 and 321/331 installed across our network. They are working but are managed by our current VoIP provider. As we are looking to change providers I took a look at the phones and found that they are running a bunch of different firmware versions which makes a nightmare to configure and manage. So, I'm trying to have them all set the same way.


Looking at the firmware table:

I see that the latest firmware for the 321/331 is and that for 320/330 is 3.3.5. I set up a local TFTP server and started updating the phones but a lot of them did not get the updates (and I see them hitting the server for the files).


I also see that the BootROM can (and in some cases has to) be updated. But I can't find what is the latest version that works on each phone (and more importantly where to download it).


I'm hoping that by updating the BootROM all the updates should go thru. Any advice on where to get them? I realize the phones are old, but they are in good working order.

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Polycom Employee & Community Manager

Re: SoundPoint IP 320/330 and 321/331 BootROM & Firmware Updates

Hello @javierg ,


Welcome to the Poly Community.

I suggest you check here:


Oct 7, 2011 Question: How can I setup my Phone / Provisioning / Download / Upgrade / Update / Downgrade Software?
Resolution: Please check => here <=




May 14, 2012 Question: Can I support a mix of legacy SIP and UCS Phones on the same Provisioning Server?
Resolution: Please check => here <=


The above should explain everything and software can be found on our support page. You may have to check in the previous releases as these phones have been end of sale.


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.


Notice: This community forum is not an official Poly support resource, thus responses from Poly employees, partners, and customers alike are best-effort in attempts to share learned knowledge. If you need immediate and/or official assistance please open a service ticket through your proper support channels.
Please also ensure you always check the VoIP , Video Endpoint , Skype for Business , PSTN or RPM FAQ's
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