AudioCodes Mediant 3000

Version 7.0 395 Mediant 3000
User's Manual 20. Coders and Profiles
Parameter Description
Note: The corresponding global parameter is InputGain.
Voice Volume
[IpProfile_VoiceVolume]
Defines the voice gain control (in decibels). For the Gateway
application: Defines the level of the transmitted signal for IP-to-Tel
calls.
The valid range is -32 to 31 dB. The default is 0 dB.
Note: The corresponding global parameter is VoiceVolume.
Media IP Version Preference
[IpProfile_MediaIPVersionPrefer
ence]
Defines the preferred RTP media IP addressing version for
outgoing SIP calls. This is indicated in the "c=" field (Connection
Information) of the SDP.
 [0] Only IPv4 = (Default) SDP offer includes only IPv4 media IP
addresses.
 [1] Only IPv6 = SDP offer includes only IPv6 media IP
addresses.
 [2] Prefer IPv4 = SDP offer includes IPv4 and IPv6 media IP
addresses, but the first media is IPv4.
 [3] Prefer IPv6 = SDP offer includes IPv4 and IPv6 media IP
addresses, but the first media is IPv6.
Notes:
 The parameter is applicable only when the device offers an
SDP.
 The IP addressing version is determined according to the first
SDP "m=" field.
 The corresponding global parameter is
MediaIPVersionPreference.
Symmetric MKI
[IpProfile_EnableSymmetricMKI
]
Enables symmetric MKI negotiation.
 [0] Disable = (Default) The device includes the MKI in its SIP
200 OK response according to the SRTPTxPacketMKISize
parameter (if set to 0, it is not included; if set to any other value,
it is included with this value).
 [1] Enable = The answer crypto line contains (or excludes) an
MKI value according to the selected crypto line in the offer. For
example, assume that the device receives an INVITE containing
the following two crypto lines in SDP:
a=crypto:2 AES_CM_128_HMAC_SHA1_80
inline:TAaxNnQt8/qLQMnDuG4vxYfWl6K7eBK/ufk04pR4
|2^31|1:1
a=crypto:3 AES_CM_128_HMAC_SHA1_80
inline:bnuYZnMxSfUiGitviWJZmzr7OF3AiRO0l5Vnh0kH
|2^31
The first crypto line includes the MKI parameter "1:1". In the 200
OK response, the device selects one of the crypto lines (i.e., '2'
or '3'). Typically, it selects the first line that supports the crypto
suite. However, for SRTP-to-SRTP in SBC sessions, it can be
determined by the remote side on the outgoing leg. If the device
selects crypto line '2', it includes the MKI parameter in its
answer SDP, for example:
a=crypto:2 AES_CM_128_HMAC_SHA1_80
inline:R1VyA1xV/qwBjkEklu4kSJyl3wCtYeZLq1/QFuxw
|2^31|1:1
If the device selects a crypto line that does not contain the MKI