AudioCodes Mediant 4000 SBC User Manual page 778

Parameter
[IsCiscoSCEMode]
User-Agent Information
configure voip > sip-
definition settings > user-
agent-info
[UserAgentDisplayInfo]
SDP Session Owner
configure voip > sip-
definition settings > sdp-
session-owner
[SIPSDPSessionOwner]
configure voip > sip-
definition settings > sdp-
ver-nego
[EnableSDPVersionNego
tiation]
User's Manual
that the remote target is a GRUU target if its' Contact URL has the "gr"
parameter with or without a value.

Using GRUU: The UA can place the GRUU in any header field that can
contain a URI. It must use the GRUU in the following messages:
INVITE request, its 2xx response, SUBSCRIBE request, its 2xx
response, NOTIFY request, REFER request and its 2xx response.
Determines whether a Cisco gateway exists at the remote side.

[0] = (Default) No Cisco gateway exists at the remote side.

[1] = A Cisco gateway exists at the remote side.
When a Cisco gateway exists at the remote side, the device must set the
value of the 'annexb' parameter of the fmtp attribute in the SDP to 'no'.
This logic is used if the parameter EnableSilenceCompression is set to 2
(enable without adaptation). In this case, Silence Suppression is used on
the channel but not declared in the SDP.
Note: The IsCiscoSCEMode parameter is applicable only when the
selected coder is G.729.
Defines the string that is used in the SIP User-Agent and Server response
headers. When configured, the string <UserAgentDisplayInfo
value>/software version' is used, for example:
User-Agent: myproduct/v.7.20A.000.038
If not configured, the default string, <AudioCodes product-name>/software
version' is used, for example:
User-Agent: Audiocodes-Sip-Gateway-Mediant 4000
SBC/v.7.20A.000.038
The maximum string length is 50 characters.
Note: The software version number and preceding forward slash (/) cannot
be modified. Therefore, it is recommended not to include a forward slash in
the parameter's value (to avoid two forward slashes in the SIP header,
which may cause problems).
Defines the value of the Owner line ('o' field) in outgoing SDP messages.
The valid range is a string of up to 39 characters. The default is
"AudiocodesGW".
For example:
o=AudiocodesGW 1145023829 1145023705 IN IP4
10.33.4.126
Enables the device to ignore new SDP re-offers (from the media
negotiation perspective) in certain scenarios (such as session expires).
According to RFC 3264, once an SDP session is established, a new SDP
offer is considered a new offer only when the SDP origin value is
incremented. In scenarios such as session expires, SDP negotiation is
irrelevant and thus, the origin field is not changed.
Even though some SIP devices don't follow this behavior and don't
increment the origin value even in scenarios where they want to re-
negotiate, the device can assume that the remote party operates
according to RFC 3264, and in cases where the origin field is not
incremented, the device does not re-negotiate SDP capabilities.

[0] Disable = (Default) The device negotiates any new SDP re-offer,
regardless of the origin field.

[1] Enable = The device negotiates only an SDP re-offer with an
incremented origin field.
778
Description
Document #: LTRT-41729
Mediant 4000 SBC