Avaya DECT R4 Installation And Administration Manual page 139

To enable provisioning do the following:
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If the https protocol is used the IPBS/IPBL downloads a certificate from the IP-PBX to ensure a secure
transaction. The IPBS/IPBL does not initially trust the certificate so it must be added manually to the
trust list of the IPBS/IPBL. It is also possible that more than one certificate is downloaded creating a
certificate chain. The root CA certificate is at the end of the chain which contains a self-signed
signature and it is able to approve other certificate requests. It is recommended to add the root CA
certificate to the IPBS trust list.
Note: The connection to the IP-PBX will only be established after the certificate is acknowledged.
If the certificate expires, the ongoing connection is maintained but it will not be possible to start a new
connection until the certificate is renewed.
To add a certificate to the trust list do the following:
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Avaya DECT R4 - Installation and Maintenance Guide
Figure 42. Configure Provisioning
Select General > Provisioning.
Select the Enable check box.
The communication between the IPBS and the IP-PBX can be encrypted using https. Select the
Use HTTPS check box to enable the encryption.
Specify the IP address of the IP-PBX in the PBX IP Address field.
The other values on the page are default values and filled out automatically.
Click "OK".
Reset the IPBS/IPBL to make the changes take effect, see
Select General > Certificates.
Operation
Reset on page 190.
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