Certificate Authorities
Proceed as follows:
• Using the Configuration Manager (page Administration > Certificates)
A certificate authority is an organisation that issues digital certificates. A digital certificate serves to assign a specific public key to a person or organisation. The certificate authority certifies this assignment by adding its own digital signature.
Issuer
The column displays the issuer of the certificate.
Issued on
The column displays when the certificate has been issued.
Valid until
The column displays the validity period of the certificate.
  New
Individual certificates are added again or all certificates are restored.
 Save
The changes are saved.
 Delete
Deletes a certificate currently saved in the PBX after user confirmation at the prompt.