AudioCodes Mediant 1000

Version 7.2 1001 Mediant 1000B Gateway & E-SBC
User's Manual 62. Configuration Parameters Reference
Parameter Description
Multiple Packetization Time
Format
configure voip > sip-
definition settings > mult-
ptime-format
[MultiPtimeFormat]
Determines whether the 'mptime' attribute is included in the outgoing
SDP.
 [0] None = (Default) Disabled.
 [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 the 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.
configure voip > sip-
definition settings > enable-
ptime
[EnablePtime]
Determines whether the 'ptime' attribute is included in the SDP.
 [0] = Remove the 'ptime' attribute from SDP.
 [1] = (Default) Include the 'ptime' attribute in SDP.
3xx Behavior
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
use the same call identifiers (Call-ID, To, and From tags) or change
them in the new initiated INVITE.
 [0] Forward = (Default) Use different call identifiers for a redirected
INVITE message.
 [1] Redirect = Use the same call identifiers in the new INVITE as
the original call.
Enable P-Charging Vector
p-charging-vector
[EnablePChargingVector]
Enables the inclusion of the P-Charging-Vector header to all outgoing
INVITE messages.
 [0] Disable (default)
 [1] Enable
Retry-After Time
configure voip > sip-
definition settings > retry-
aftr-time
[RetryAfterTime]
Defines the time (in seconds) used in the Retry-After header when a
503 (Service Unavailable) response is generated by the device.
The time range is 0 to 3,600. The default is 0.
Fake Retry After
fake-retry-after
[FakeRetryAfter]
Determines whether the device, upon receipt of a SIP 503 response
without a Retry-After header, behaves as if the 503 response included
a Retry-After header and with the period (in seconds) specified by the
parameter.
 [0] Disable (default)
 Any positive value (in seconds) for defining the period
When enabled, this feature allows the device to operate with Proxy
servers that do not include the Retry-After SIP header in SIP 503
(Service Unavailable) responses to indicate an unavailable service.
The Retry-After header is used with the 503 (Service Unavailable)
response to indicate how long the service is expected to be
unavailable to the requesting SIP client. The device maintains a list of
available proxies, by using the Keep-Alive mechanism. The device
checks the availability of proxies by sending SIP OPTIONS every
keep-alive timeout to all proxies.
If the device receives a SIP 503 response to an INVITE, it also marks