User`s guide

Dialogic
®
1000 and 2000 Media Gateway Series User’s Guide — September 2007 49
Dialogic Corporation
Parameter Reference
3.2.2.2 MKI on Transmit Stream
Description: Specifies if Master Key Index (MKI) is supported on transmit stream.
Allowed Values:
• Yes = Transmit stream supports MKI
• No = Transmit stream does not support MKI
Default Value = Yes
INI File Parameter Name = srtpTxMkiEnable
Note: Currently, the Media Gateway uses only one master key.
3.2.2.3 Key Derivation Enable
Description: Specifies if the Secure RTP (SRTP) Key is changed during a voice session.
Allowed Values:
• Yes = The SRTP Key is periodically changed during a voice session. The period is determined
by the Key Derivation Rate.
• No = A single SRTP Key is used during a voice session.
Default Value = Yes
INI File Parameter Name = srtpKdrEnable
3.2.2.4 Key Derivation Rate
Description: Specifies the number of voice packets that cause the SRTP Key to be changed. The
number is 2**<KDR>.
Allowed Values: 16 to 24
Default Value = 16
INI File Parameter Name = srtpKdrValue
3.2.2.5 Anti-replay window size hint
Description: Specifies the Anti-replay window size hint.
Allowed Values: 64 to 99
Default Value = 64
INI File Parameter Name = srtpWsh