SIP User's Manual 606 Document #: LTRT-83310
Mediant 600 & Mediant 1000
Parameter Description
Web/EMS: SDP Session
Owner
[SIPSDPSessionOwner]
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 value is
'AudiocodesGW'.
For example:
o=AudiocodesGW 1145023829 1145023705 IN IP4
[EnableSDPVersionNegotia
tion]
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 = The device negotiates any new SDP re-offer,
regardless of the origin field (default).
[1] Enable = The device negotiates only an SDP re-offer with an
incremented origin field.
Web/EMS: Subject
[SIPSubject]
Defines the Subject header value in outgoing INVITE messages. If
not specified, the Subject header isn't included (default).
The maximum length is up to 50 characters.
Web: Multiple Packetization
Time Format
EMS: Multi Ptime Format
[MultiPtimeFormat]
Determines whether the 'mptime' attribute is included in the outgoing
SDP.
[0] None = Disabled (default)
[1] PacketCable = includes the 'mptime' attribute in the outgoing
SDP - PacketCable-defined format
The mptime' attribute enables the device to define a separate
Packetization period for each negotiated coder in the SDP. The
mptime' attribute is only included if this parameter is enabled, even if
the remote side includes it in the SDP offer. Upon receipt, each coder
receives its 'ptime' value in the following precedence: from 'mptime'
attribute, from 'ptime' attribute, and then from default value.
EMS: Enable P Time
[EnablePtime]
Determines whether the 'ptime' attribute is included in the SDP.
[0] = Remove the 'ptime' attribute from SDP.
[1] = Include the 'ptime' attribute in SDP (default).
Web/EMS: 3xx Behavior
[3xxBehavior]
Determines the device's behavior regarding call identifiers when a 3xx
response is received for an outgoing INVITE request. The device can
either use the same call identifiers (Call-ID, To, and From tags) or
change them in the new initiated INVITE.
[0] Forward = Use different call identifiers for a redirected INVITE
message (default).
[1] Redirect = Use the same call identifiers.
Web/EMS: Enable P-
Charging Vector
[EnablePChargingVector]
Enables the inclusion of the P-Charging-Vector header to all outgoing
INVITE messages.
[0] Disable (default)
[1] Enable
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