AudioCodes Mediant 2600 - Page 613

Version 6.8 613 Mediant 2600 E-SBC
User's Manual 43. Configuration Parameters Reference
Parameter Description
[RFC2833RxPayloadType]
the parameter TxDTMFOption is set to 4), this payload type is
used for the received DTMF packets. If negotiation isn't used,
this payload type is used for receive and for transmit.
[EnableDetectRemoteMACChange] Determines whether the device changes the RTP packets
according to the MAC address of received RTP packets and
according to Gratuitous Address Resolution Protocol (GARP)
messages.
 [0] = Nothing is changed.
 [1] = If the device receives RTP packets with a different
source MAC address (than the MAC address of the
transmitted RTP packets), then it sends RTP packets to
this MAC address and removes this IP entry from the
device's ARP cache table.
 [2] = (Default) The device uses the received GARP packets
to change the MAC address of the transmitted RTP
packets.
 [3] = Options 1 and 2 are used.
Notes:
 For this parameter to take effect, a device reset is required.
 If the device is located in a network subnet which is
connected to other gateways using a router that uses
Virtual Router Redundancy Protocol (VRRP) for
redundancy, then set this parameter to 0 or 2.
Web: RTP Base UDP Port
EMS: Base UDP Port
[BaseUDPport]
Global parameter that defines the lower boundary of the UDP
port used for RTP, RTCP (RTP port + 1) and T.38 (RTP port +
2). For a detailed description of configuring the UDP port
range, see Configuring RTP Base UDP Port on page 171.
Note: For this parameter to take effect, a device reset is
required.
[UdpPortSpacing]
Defines the UDP port spacing within the configured port range.
 [5] (default)
 [10]
Notes:
 A device reset is required for this parameter to take effect.
 For more information on configuring the UDP port range,
see Configuring RTP Base UDP Port on page 171.
EMS: No Op Enable
CLI: no-operation-enable
[NoOpEnable]
Enables the transmission of RTP or T.38 No-Op packets.
 [0] = Disable (default)
 [1] = Enable
This mechanism ensures that the NAT binding remains open
during RTP or T.38 silence periods.
EMS: No Op Interval
[NoOpInterval]
Defines the time interval in which RTP or T.38 No-Op packets
are sent in the case of silence (no RTP/T.38 traffic) when No-
Op packet transmission is enabled.
The valid range is 20 to 65,000 msec. The default is 10,000.
Note: To enable No-Op packet transmission, use the
NoOpEnable parameter.