AudioCodes Mediant 3000 User Manual page 340

Parameter
Media Realm
[SIPInterface_MediaReal
m]
SBC Direct Media
[SIPInterface_SBCDirect
Media]
TLS Context Name
[SIPInterface_TLSContex
t]
User's Manual
Assigns a Media Realm to the SIP Interface.
By default, no value is defined (None).
For configuring Media Realms, see ''Configuring Media Realms'' on page
319.
Note: If you later delete the assigned Media Realm in the Media Realm
table, this value becomes None.
Enables direct media (RTP/SRTP) flow (i.e., no Media Anchoring)
between endpoints associated with the SIP Interface.

[0] Disable = (Default) Media Anchoring is employed, whereby the
media stream traverses the device (and each leg uses a different
coder or coder parameters).

[1] Enable = No Media Anchoring. Media stream flows directly
between endpoints (i.e., does not traverse the device - no Media
Anchoring).

[2] Enable when Same NAT = No Media Anchoring. Media stream
flows directly between endpoints if they are located behind the same
NAT.
Notes:

If the parameter is enabled for direct media and the two endpoints
belong to the same SIP Interface, calls cannot be established if the
following scenario exists:
a. One of the endpoints is defined as a foreign user (for example,
"follow me service")
b. and one endpoint is located on the WAN and the other on the
LAN.
The reason for the above is that in direct media, the device does not
interfere in the SIP signaling such as manipulation of IP addresses,
which is necessary for calls between LAN and WAN.

To enable direct media for all calls, use the global parameter
SBCDirectMedia. If enabled, even if the SIP Interface is disabled for
direct media, direct media is employed for calls belonging to the SIP
Interface.

For more information on direct media, see Direct Media on page 559.
Assigns a TLS Context (SSL/TLS certificate) to the SIP Interface.
The default TLS Context ("default" at Index 0) is assigned to the SIP
Interface by default.
Notes:

For incoming calls: The assigned TLS Context is used if no TLS
Context is configured for the Proxy Set associated with the call or
classification to an IP Group based on Proxy Set fails.

For outgoing calls: The assigned TLS Context is used if no TLS
Context is configured for the Proxy Set associated with the call.
For more information on TLS Contexts, see ''Configuring SSL/TLS
Certificates'' on page 123.
340
Description
Document #: LTRT-89730
Mediant 3000