AudioCodes Mediant 800B MSBR User Manual page 339

User's Manual
Parameter
Web: SDP Ptime Answer
CLI: sbc-sdp-ptime-ans
[IpProfile_SBCSDPPtimeAnswer]
Web: Preferred Ptime
CLI: sbc-preferred-ptime
[IpProfile_SBCPreferredPTime]
Web: Use Silence Suppression
CLI: sbc-use-silence-supp
[IpProfile_SBCUseSilenceSupp]
Version 6.8

[0] Transparent = (Default) SIP entity supports the
Replaces header. The device forwards the received
INVITE with the Replaces header as is to the SIP
entity.

[1] Handle Locally = The SIP entity does not support
INVITE with the Replaces header. The device
terminates the received INVITE with 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.
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 packetization time (ptime) of the coder in RTP
packets for this SIP entity. This is useful when
implementing transrating.

[0] Remote Answer (Default) = Use ptime according to
SDP answer.

[1] Original Offer = Use ptime according to SDP offer.

[2] Preferred Value= Use preferred ptime for
negotiation, if configured by the 'Preferred Ptime'
parameter.
Defines the packetization time (in msec) for this SIP entity
if the 'SBC SDP Ptime Answer' parameter is set to
Preferred Value.
The valid range is 0 to 200. The default is 0 (i.e., preferred
ptime is not used).
Defines silence suppression support for this SIP entity.

[0] Transparent (default) = Forward as is.

[1] Add = Enable silence suppression for each relevant
coder listed in the SDP.

[2] Remove = Disable silence suppression for each
relevant coder listed in the SDP.
339
23. Coders and Profiles
Description
Mediant 800B MSBR