The following information can be used to provisioning Cisco SPA phones.
An example URL for provisioning URL for a Cisco SPA.
Phone web interface -> Provision - > Profile Rule
[--uid myUser --pwd myPass]http://mydomain.com/app/provision/?mac=$MA
Requires a Cisco Certificate that you will likely need to obtain from a Cisco distributor.
Use your web browser to send the following command to pass the provision the phone now and this will pass URL to the phone so it has the location neeeded for provisioning the device. In this example 192.168.1.5 is the IP address of the phone and domain.com needs updated to use the correct tenant domain name.
No HTTP Authentication
With HTTP Authentication
Use the DHCP Option 66 to deliver the provisioning URL to the phones without using the web interface.
More information can also be found at https://www.cisco.com/c/dam/en/us/td/docs/voice_ip_comm/csbpvga/spa100-200/provisioning/guide/SPA100-200_Provisioning.pdf