Version 7.2 217 Mediant 500L Gateway & E-SBC
User's Manual 14. Media
MKI globally (using the EnableSymmetricMKI parameter) or per SIP entity (using the IP
Profile parameter, IpProfile_EnableSymmetricMKI and for SBC calls,
IpProfile_SBCEnforceMKISize). For more information on symmetric MKI, see ''Configuring
IP Profiles'' on page 438.
You can configure the enforcement policy of SRTP, using the EnableMediaSecurity
parameter for Gateway calls and IpProfile_SBCMediaSecurityBehaviour parameter for
SBC calls. For example, if negotiation of the cipher suite fails or if incoming calls exclude
encryption information, the device can be configured to reject the calls.
Note:
• For a detailed description of the SRTP parameters, see ''Configuring IP Profiles''
on page 438 and ''SRTP Parameters'' on page 1042.
• When SRTP is used, the channel capacity may be reduced.
The procedure below describes how to configure SRTP through the Web interface.
To enable and configure SRTP:
1. Open the Media Security page (Setup menu > Signaling & Media tab > Media folder
> Media Security).
Figure 14-14: Configuring Media Security
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