Encryption ensures no one else can read the data sent to and from the IP Office. Encryption is the application of a complex mathematical process at the originating end, and a reverse process at the receiving end. The process at each end uses the same ‘key’ to encrypt and decrypt the data:
The IP Office can encrypt any data sent using a number the following algorithms:
Algorithm |
Key size (bits) |
Use |
DES-40 |
40 |
Not supported. |
DES-56 |
56 |
Not supported. |
3DES |
112 |
Low security. |
RC4-128 |
128 |
Medium security. |
AES-128 |
128 |
High security. |
AES-256 |
256 |
High security. |
In general, the larger the key size, the more secure the encryption. However, smaller key sizes require less processing. The system supports encryption using the Transport Layer Security (TLS) protocol.