AudioCodes Media Pack MP-11x, Руководство пользователя

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User's Manual 506 Document #: LTRT-65432
MP-11x & MP-124
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.
44.4.3 SRTP Parameters
The Secure Real-Time Transport Protocol (SRTP) parameters are described in the table
below.
Table 44-23: 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 parameter to 1.