AudioCodes Mediant 1000

User's Manual 400 Document #: LTRT-27045
Mediant 1000B Gateway & E-SBC
Parameter Description

[0] Disable = (Default) Device always sends the same SDP
answer, which is based on the first received answer that it sent to
the SIP entity, for all forked responses (even if 'Forking Handling
Mode' is Sequential), and thus, may result in transcoding.
 [1] Enable = If the 'Forking Handling Mode' parameter is
configured to Sequential, the device sends multiple SDP
answers.
Remote Early Media RTP
Detection Mode
sbc-rmt-early-media-rtp
[IpProfile_SBCRemoteEarlyM
ediaRTP]
Defines whether the destination UA sends RTP immediately after it
sends a 18x response.
 [0] By Si
gnaling = (Default) Remote client sends RTP immediately
after it sends 18x response with early media. The device forwards
18x and RTP as is.
 [1] By Media = After sending 18x response, the remote client
waits before sending RTP (e.g., Microsoft Skype for Business
environment). For the device's handling of this remote UA
support, see Interworking SIP Early Media on page 632.
Remote RFC 3960 Support
sbc-rmt-rfc3960-supp
[IpProfile_SBCRemoteSupport
sRFC3960]
Defines whether the destination UA is capable of receiving 18x
messages with delayed RTP.
 [0] Not Supported = (Default) UA does not support receipt of 18x
messages with delayed RTP. For the device's handling of this
remote UA support, see Interworking SIP Early Media on page
632.
 [1] Supported = UA is capable of receiving 18x messages with
delayed RTP.
Remote Can Play Ringback
sbc-rmt-can-play-ringback
[IpProfile_SBCRemoteCanPla
yRingback]
Defines whether the destination UA can play a local ringback tone.
 [0] No = UA does not support local ringback tone. The device
sends 18x with delayed SDP to the UA.
 [1] Yes = (Default) UA supports local ringback tone. For the
device's handling of this remote UA support, see Interworking SIP
Early Media on page 632.
Generate RTP
sbc-generate-rtp
[IPProfile_SBCGenerateRTP]
Enables the device to generate "silence" RTP packets to the SIP
entity until it detects audio RTP packets from the SIP entity. The
parameter provides support for interworking with SIP entities that
wait for the first incoming packets before sending RTP (e.g., early
media used for ringback tone or IVR) during media negotiation.
 [0] None (Default) = Silence packets are not generated.
 [1] Until RTP Detected = The device generates silence RTP
packets to the SIP entity upon receipt of a SIP response (183 with
SDP) from the SIP entity. In other words, these packets serve as
the first incoming packets for the SIP entity. The device stops
sending silence packets when it receives RTP packets from the
peer side (which it then forwards to the SIP entity).
Note: To generate silence packets, DSP resources are required
(except for calls using the G.711 coder).
SBC Media
Transcoding Mode
transcoding-mode
[IpProfile_TranscodingMode]
Defines the transcoding mode (media negotiation) for the SIP entity
associated with the IP Profile.
 [0] Only if Required = (Default) Transcoding is done only when
necessary. Many of the media settings (such as gain control) are
not implemented on the voice stream. The device forwards RTP