- Sentinel 100
- Sentinel 400
- Mediatrix S7 and S7 LP Series
- Mediatrix G7 Series
- Mediatrix C7 Series
- Mediatrix 4100 Series
- Mediatrix 3000 Series
- Mediatrix 4400 Series
- Mediatrix LP Series
The Mediatrix unit uses digital certificates, which are a collection of data used to verify the identity of individuals, computers, and other entities on a network.
Although certificates are factory-installed new ones can also be added. Since certificates have a validity period (start date and expiry date), the use of NTP (Network Time Protocol) is mandatory when using the security features.
The Mediatrix unit uses two types of certificates:
To enable a TLS connection on Mediatrix units, no CA certificate needs to be installed if the respective parameters for each secure service (e.g. SIP, Conf, Cwmp, etc) has the NoValidation value. If the value is different than NoValidation, then at least one CA certificate needs to be installed. This certificate must be uploaded to the Mediatrix units. The Mediatrix unit then checks the server identity by validating the host name used to contact it against the information found in the server's certificate. If the validation fails, the Mediatrix unit refuses the secure connection. For the SIP over TLS service, we have four (4) levels of validation: HostName, trustedCertificate, DNSSRV, and NoValidation (for a complete description of the validation levels, refer to the Help of the DGW Web interface under SIP/Interop). The way that the remote peer is evaluated for secure connection differs for each level. Remember that the unit must be correctly configured with an SNTP server because the TLS server certificate is also validated in terms of time (certificate validation/expiration date, etc.).
For example in a setup for two Mediatrix gateways with no SIP proxy in the middle. At least one of the units will require a Host certificate. If only one unit has a Host certificate, the calls will be allowed in only one direction (Unit 1 calls Unit 2). For bi-directional calls, both Mediatrix units would require a Host certificate. By default it is not possible to upload a Host certificate without first clicking on Activate unsecure certificate transfer. This is because the certificate upload will be done in clear text, which means the private key will be susceptible to interception.
Certificates are used to secure the following connections:
The name of the certificate cannot have more than 50 characters.
-----BEGIN CERTIFICATE----- MIICNTCCAZ6gAwIBAgIJANYsw8F6ocdbMA0GCSqGSIb3DQEBBQUAMEQxEzARBgoJ kiaJk/IsZAEZFgNjb20xGTAXBgoJkiaJk/IsZAEZFgltZWRpYXRyaXgxEjAQBgNV BAMTCU1lZGlhNWRldjAeFw0wODA4MzExNzQwMTBaFw0xODA4MzExNzQwMTBaMEQx EzARBgoJkiaJk/IsZAEZFgNjb20xGTAXBgoJkiaJk/IsZAEZFgltZWRpYXRyaXgx EjAQBgNVBAMTCU1lZGlhNWRldjCBnzANBgkqhkiG9w0BAQEFAAOBjQAwgYkCgYEA 3TJm6UbpfidGJ/kURz3/kwr8lOLY+Fe28O/Iq9Klq5m5G0NEbl8aF3+EbSPTV8GU YlnzXdHHrAVDP5f3gPJU2+obWxbmQSlqvjx6QdxAhNcGTdPv7UGatQapCmQe1/Ct 2qtlqXrxG/bTPv+Vt/WKPmFEA+hjkVJ1hQgQLAUpD2MCAwEAAaMvMC0wDAYDVR0T BAUwAwEB/zAdBgNVHSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwDQYJKoZIhvcN AQEFBQADgYEALhFUmWUROV7UTf/Zy3hmZDWyjd8YcuAkb+TrdvK7yHJHTqC0DdvB L10REHz6Ch7WCiydR8JLj0fAK+kXGYj9VdWj+qvlTnV4PBEvNzA3bbHBqVoOupJM aDT7atCeNRJ8ipcy7MHN00FRbEW0XKhwnDxQnX2tz0myAeAnDHe5bsQ= -----END CERTIFICATE-----
If you are not familiar with the meaning of the fields and buttons, click Show Help, located at the upper right corner of the Web page. When activated, the fields and buttons that offer online help will change to green and if you hover over them, the description will be displayed.
Mediatrix units are supplied with an exhaustive set of documentation.
Mediatrix user documentation is available on the Documentation Portal .
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