The process of migrating Poly VVX phones from Teams/Skype to Zoom Phone is a three (3) step process.
Configure the IP Phone within the Zoom Phone portal
Remove DHCP options that point to Teams/Skype provisioning server URL
Factory rest the IP phone, and it will complete via zero-touch provisioning
When using DHCP options to provide a provisioning server (DHCP option 160 or 161 - depending on the SKU that was used to purchase the phone).
If using DHCP options, the IP phone will pickup the provisioning server via specific option values. If you are migrating all IP phones at once, you can just delete/clear the option within the DHCP scope/server, and factory rest the IP phones.
Staged Migration
If you are migrating phones in a phased approach, one (1) way to complete is via DHCP Policies.
Since you can configure multiple policies at both the scope level and server level, each policy is assigned a processing order. The processing order can also be modified, assuming more than a single policy exists. The following conditions exist:
When processing DHCP client requests, the DHCP server evaluates each client request against the conditions in all applicable policies, based on their processing order.
Scope level policies are processed first by the DHCP server, followed by server wide policies. Theoretically, a client can match the conditions of several scope policies and also several server policies.
If a client satisfies the conditions of more than 1 policy, it will get the combined settings from all policies that it matched. If the same option setting is provided in multiple policies, the client will use the setting from the first policy that is processed.
After some digging around today to try and find what the format of the time stamp from the Polycom VVX model IP Phones, so figured that I would do a quick post so that I can find it next time.
So I have been playing around with the Polycom VVX IP Phones more and more lately and with the new features that are coming in the next few months I think this could become the go-to phone for Lync deployments that need IP Phones on the desk. So of the features that I like include:
Touch Screen for user authentication
Ability to us Lync PIN number for authentication
With UC Software release 4.1 or better the address book is downloaded to the phone, so no need to do anything with number normalisation/dial plans on the VVX phone
Retrieve Lync server root certificate automatically using DHCP Option 43
Currently to upgrade the phone you can either do it manually (not a problem is you only have a few phones) or can use a provisioning server. The provisioning server, from what I have found can be:
FTP (Default)
TFTP
HTTP
HTTPS
FTPS
To define the host for your provisioning server you can use DHCP option 66 (Boot Server Host Name) option 66 is a string value, by default the VVX phones will use FTP to download the configuration file and any firmware updates.
The default username and password for the VVX phones to use for the FTP session is defined within some of the Polycom support documents, OR you can use the same DHCP option 66 with the format "username:password@FTP Server IP/Hostname", without the quotes, this will allow you to define the username and password. One word of warning this username and password is passed via clear text in the DHCP messages so it can easily be found.