AudioCodes Mediant 3000 User Manual page 352

Parameter
at]
Web: Remote Replaces Behavior
[IpProfile_SBCRemoteReplacesB
ehavior]
Adapt RFC2833 BW to Voice
coder
BWsbc-adapt-rfc2833-bw-
voice-bw
[IpProfile_SBCAdaptRFC2833B
WToVoiceCoderBW]
User's Manual

[0] Transparent = Device forwards SDP as is.

[1] Send Only = Device sends SDP with 'a=sendonly'.

[2] Send Only Zero ip = Device sends SDP with 'a=sendonly'
and 'c=0.0.0.0'.

[3] Inactive = Device sends SDP with 'a=inactive'.

[4] Inactive Zero ip = Device sends SDP with 'a=inactive' and
'c=0.0.0.0'.

[5] Not Supported = Used when remote side cannot identify a
call-hold message. The device terminates the received call-
hold message (re-INVITE / UPDATE) and sends a 200 OK to
the initiator of the call hold. The device plays a held tone to the
held party if the 'SBC Play Held Tone' parameter is set to Yes.
Enables the device to handle incoming INVITEs containing the
Replaces header for the SIP entity (which does not support the
header) associated with the IP Profile. The Replaces header is
used to replace an existing SIP dialog with a new dialog such as
in call transfer or call pickup.

[0] Standard = (Default) The SIP entity supports INVITE
messages containing Replaces headers. The device forwards
the INVITE message containing the Replaces header to the
SIP entity. The device may change the value of the Replaces
header to reflect the call identifiers of the leg.

[1] Handle Locally = The SIP entity does not support INVITE
messages containing Replaces headers. The device
terminates the received INVITE containing the Replaces
header and establishes a new call between the SIP entity and
the new call party. It then disconnects the call with the initial
call party, by sending it a SIP BYE request.

[2] Keep as is = The SIP entity supports INVITE messages
containing Replaces headers. The device forwards the
Replaces header as is in incoming REFER and outgoing
INVITE messages from/to the SIP entity (i.e., Replaces
header's value is unchanged).
For example, assume that the device establishes a call between
A and B. If B initiates a call transfer to C, the device receives an
INVITE with the Replaces header from C. If A supports the
Replaces header, the device simply forwards the INVITE as is to
A; a new call is established between A and C and the call
between A and B is disconnected. However, if A does not support
the Replaces header, the device uses this feature to terminate
the INVITE with Replaces header and handles the transfer for A.
The device does this by connecting A to C, and disconnecting the
call between A and B, by sending a SIP BYE request to B. Note
that if media transcoding is required, the device sends an INVITE
to C on behalf of A with a new SDP offer.
Defines the 'telephone-event' type (8000 or 16000) in the SDP
that the device sends in the outgoing SIP 200 OK message for
DTMF payload negotiation (sampling rate).

[0] Disable = (Default) The device always sends the
'telephone-event' as 8000 in the outgoing SIP 200 OK, even if
the SDP of the incoming INVITE contains multiple telephone-
event types (e.g., 8000 and 16000).

[1] Enable = The type of 'telephone-event' that the device
sends in the outgoing SIP 200 OK message is according to
352
Description
Document #: LTRT-89738
Mediant 3000