AudioCodes Mediant 1000

Version 7.2 1159 Mediant 1000B Gateway & E-SBC
User's Manual 62. Configuration Parameters Reference
Parameter Description
associated with the IP Profile.
configure voip > sbc settings > sbc-
xfer-prefix
[SBCXferPrefix]
When the SBCReferBehavior is set to 1, the device, while
interworking the SIP REFER message, adds the prefix "T~&R-
" to the user part of the URI in the Refer-To header. After this,
the device can receive an INVITE with such a prefix (the
INVITE is sent by the UA that receives the REFER message or
302 response). If the device receives an INVITE with such a
prefix, it replaces the prefix with the value defined for the
SBCXferPrefix parameter.
By default, no value is defined.
Note: This feature is also applicable to 3xx redirect responses.
The device adds the prefix "T~&R-" to the URI user part in the
Contact header if the SBC3xxBehavior parameter is set to 1.
configure voip > sbc settings > sbc-
3xx-bhvt
[SBC3xxBehavior]
Global parameter that defines the handling of SIP 3xx redirect
responses. You can also configure this functionality per
specific calls, using IP Profiles
(IpProfile_SBCRemote3xxBehavior). For a detailed description
of the parameter and for configuring this functionality in the IP
Profiles table, see ''Configuring IP Profiles'' on page 393.
Note: If this functionality is configured for a specific IP Profile,
the settings of this global parameter is ignored for calls
associated with the IP Profile.
configure voip > sbc
settings > enforce-media-
order
[SBCEnforceMediaOrder]
Enables the device to include all previously negotiated media
lines within the current session ('m=' line) in the SDP offer-
answer exchange (RFC 3264).
 [0] Disable (default)
 [1] Enable
For example, assume a call (audio) has been established
between two endpoints and one endpoint wants to
subsequently send an image in the same call session. If the
parameter is enabled, the endpoint includes the previously
negotiated media type (i.e., audio) with the new negotiated
media type (i.e., image) in its SDP offer:
v=0
o=bob 2890844730 2890844731 IN IP4
host.example.com
s=
c=IN IP4 host.example.com
t=0 0
m=audio 0 RTP/AVP 0
m=image 12345 udptl t38
If the parameter is disabled, the only ‘m=’ line included in the
SDP is the newly negotiated media (i.e., image).
SBC Diversion URI Type
configure voip > sbc settings > sbc-
diversion-uri-type
[SBCDiversionUriType]
Defines the URI type to use in the SIP Diversion header of the
outgoing SIP message.
 [0] Transparent = (Default) The device does not change the
URI and leaves it as is.
 [1] Sip = The "sip" URI is used.
 [2] Tel = The "tel" URI is used.
Note: The parameter is applicable only if the Diversion header