Aastra 9000i Series Administrator's Manual page 841

Example The following example downloads no trusted certificate file:
sips trusted certificates:
The following example downloads the trusted certificate file from the
original configuration server.
sips trusted certificates: phonesTrustedCert.pem
The following example uses FTP to download the firmware file
"phonesTrustedCert.pem" (trusted certificate file) from the "path" directory
on server 1.2.3.4 using port 50:
sips trusted certificates:ftp://admin:admin!@1.2.3.4:50/path/
phonesTrustedCert.pem
A-116 41-001343-01 Rev 02, Release 3.2.2