Avaya 1110 Fundamentals page 399

Figure 73: Fingerprint value screen
You must verify the fingerprint is correct and either select Accept or Reject, based on the
verification. A 5-minute timeout occurs so you can perform the verification, after which the
screen disappears. The file rejects if you take no action.
Manual B
Manual B uses a 20 digit fingerprint.
If the file containing a service provider certificate is not signed, you must enter a fingerprint for
the file as a whole, regardless of the number of certificates contained in the file. If you enter
the correct fingerprint, all certificates in the file validate and save. This is more secure than
Manual A, as the tendency would be to automatically accept the prompted value.
In Manual B mode, the description of the file presents and you are prompted to enter the
fingerprint you receive; for example, by e-mail.
If you select Install the file type, a prompt to enter the fingerprint and a cursor appears on the
screen. See
Enter the fingerprint and select Accept. If the fingerprint is correct, the certificate saves and
the IP Phone continues with its operation. If the fingerprint is incorrect an error message
displays for a few seconds and you are prompted again to re-enter the fingerprint.
See Figure 73: Fingerprint value screen
After three consecutive errors, the certificate rejects and the IP Phone continues its operations.
A 30-second timeout occurs after which the screen disappears and the certificate rejects.
File signing
A file is signed by appending a digital signature, which is created using a Signing Certificate.
The Signing Certificate must either be directly issued by a CA root certificate installed on the
phone or there must be a certificate chain that can be followed, which ends with a CA root
certificate installed on the phone. In either case, there must be a trust anchor on the phone,
which can verify the authenticity of the Signing Certificate.
IP Deskphones Fundamentals
Figure 73: Fingerprint value screen on page 399.
on page 399.
Certificate installation
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