AudioCodes Mediant 800B User Manual page 345

User's Manual
Parameter
Encapsulating Protocol
encapsulating-protocol
[SIPInterface_EncapsulatingP
rotocol]
Media Realm
media-realm-name
[SIPInterface_MediaRealm]
SBC Direct Media
intra-srd-media-
anchoring
[SIPInterface_SBCDirectMedi
a]
Version 7.0

Each SIP Interface must have a unique signaling port (i.e., no two
SIP Interfaces can share the same port - no port overlapping).
Defines the type of incoming traffic (SIP messages) expected on the
SIP Interface.

[0] No Encapsulation (default) = Regular (non-WebSocket) traffic.

[1] WebSocket = Traffic received on the SIP Interface is identified
by the device as WebSocket signaling traffic (encapsulated by
WebSocket frames). For outgoing traffic, the device encapsulates
the traffic using the WebSocket protocol (frames) on the TCP/TLS
ports.
For more information on WebSocket, see SIP over WebSocket on
page 688.
Note: WebSocket encapsulation is not supported for UDP ports.
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 323.
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
610.
345
17. Control Network
Description
Mediant 800B Gateway and E- SBC