AudioCodes Mediant 800 - Page 468

CHAPTER19 Coders and Profiles
Mediant 800 Gateway & E-SBC | User's Manual
Parameter Description
✔ Action Value: 'switch-profile;profile-name=ITSP-
Profile-1'
The Message Manipulation rules must be assigned to the
SIP entity's IP Group, using the 'Inbound Message
Manipulation Set' parameter.
Note:
■ To send DTMF digits using both methods (i.e., when
the parameter is enabled), you need to also configure
the following:
✔ Configure the 'Alternative DTMF Method'
(IPProfile_SBCAlternativeDTMFMethod)
parameter to one of the SIP INFO options (INFO –
Cisco, INFO – Nortel, or INFO – Lucent).
✔ Enable the sending of DTMF digits using the RFC
2833 method, by configuring the 'RFC 2833 Mode'
(IpProfile_SBCRFC2833Behavior) parameter to
As Is or Extend.
■ When using the X-AC-Action header to switch IP
Profiles, it is recommended that the settings of the
switched IP Profile are identical (except for the 'Send
Multiple DTMF Methods' parameter) to the initial IP
Profile in order to avoid any possible call handling
errors.
■ The parameter is applicable only to the SBC
application.
'Adapt RFC2833 BW to Voice
coder BW'
sbc-adapt-rfc2833-bw-
voice-bw
[IpProfile_
SBCAdaptRFC2833BWToVoic
eCoderBW]
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 the coder type (narrowband or wideband).
If narrowband, it sends the 'telephone-event' as 8000; if
wideband, it sends it as 16000.
An example when the parameter is configured to Enable is
shown below, whereby the 'telephone-event' is "16000" in
the outgoing message due to the wideband coder:
SDP in incoming INVITE:
a=rtpmap:97 AMR-WB/16000/1 a=fmtp:97 mode-
change-capability=2 a=rtpmap:98 AMR-
WB/16000/1 a=fmtp:98 octet-align=1; mode-
change-capability=2 a=rtpmap:100
AMR/8000/1 a=fmtp:100 mode-change-
capability=2 a=rtpmap:99 telephone-
event/16000/1 a=fmtp:99 0-15 a=rtpmap:102
telephone-event/8000/1 a=fmtp:102 0-15
- 428 -