zero touch provisioning & firewall

[complex1]

(10-07-2021 10:40 PM)gareth20202 Wrote:  Hi all,

How does the zero-touch provisioning redirect service work? Ports etc?

We recently installed some phones into a school and the phones would not download the config. Removed them from the site on a normal internet connection and they provisioned fine.

Thanks

Hi,

As far as I know, is there no difference between a zero-touch provisioning and a "normal" provisioning, except the way you do it... provision the phone.
Because you can provision the phone at home and not at school, I guess your school router or firewall causes the issue.
Make sure the SIP ALG feature of the school router is disabled and try again.