AudioCodes MediaPack Series MP-11x

Version 6.6 489 MP-11x & MP-124
User's Manual 43. Configuration Parameters Reference
Parameter Description
[HTTPSCertFileName]
Defines the name of the HTTPS server certificate file to be
loaded using TFTP. The file must be in base64-encoded PEM
format.
The valid range is a 47-character string.
Note: This parameter is only applicable when the device is
loaded using BootP/TFTP. For information on loading this file
using the Web interface, refer to the Product Reference Manual.
43.4.3 SRTP Parameters
The Secure Real-Time Transport Protocol (SRTP) parameters are described in the table
below.
Table 43-22: SRTP Parameters
Parameter Description
Web: Media Security
EMS: Enable Media Security
[EnableMediaSecurity]
Enables Secure Real-Time Transport Protocol (SRTP).
 [0] Disable = (Default) SRTP is disabled.
 [1] Enable = SRTP is enabled.
Notes:
 For this parameter to take effect, a device reset is required.
 SRTP reduces the number of available channels.

MP-124: 18 available channels

MP-118: 6 available channels

MP-114: 3 available channels
 MP-112: No reduction
Web/EMS: Media Security
Behavior
[MediaSecurityBehaviour]
Determines the device's mode of operation when SRTP is used (i.e.,
when the parameter EnableMediaSecurity is set to 1).
 [0] Preferable = (Default) The device initiates encrypted calls.
However, if negotiation of the cipher suite fails, an unencrypted call
is established. Incoming calls that don't include encryption
information are accepted.
 [1] Mandatory = The device initiates encrypted calls, but if
negotiation of the cipher suite fails, the call is terminated. Incoming
calls that don't include encryption information are rejected.
 [2] Disable = The IP Profile for which this parameter is set does not
support encrypted calls (i.e., SRTP).
 [3] Preferable - Single Media = The device sends SDP with a
single media ('m=') line only (e.g., m=audio 6000 RTP/AVP 4 0 70
96) with RTP/AVP and crypto keys. The remote UA can respond
with SRTP or RTP parameters:

If the remote SIP UA does not support SRTP, it uses RTP and
ignores the crypto lines.

In the opposite direction, if the device receives an SDP offer
with a single media (as shown above), it responds with SRTP
(RTP/SAVP) if the EnableMediaSecurity parameter is set to 1.
If SRTP is not supported (i.e., EnableMediaSecurity is set to
0), it responds with RTP.
Notes:

Before configuring this parameter, set the EnableMediaSecurity