AudioCodes Media 800 MSBR

User's Manual 846 Document #: LTRT-12809
Mediant 800 MSBR
Parameter Description
payload type is used for receive and for transmit.
[EnableDetectRemoteMACC
hange]
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]
Defines the lower boundary of the UDP port used for RTP, RTCP
(RTP port + 1) and T.38 (RTP port + 2). For example, if the Base
UDP Port is set to 6000, then one channel may use the ports RTP
6000, RTCP 6001, and T.38 6002, while another channel may use
RTP 6010, RTCP 6011, and T.38 6012, and so on.
The range of possible UDP ports is 6,000 to 64,000. The default
base UDP port is 6000.
Once this parameter is configured, the UDP port range (lower to
upper boundary) is calculated as follows:
 BaseUDPport to (BaseUDPport + 255*10)
Notes:
 For this parameter to take effect, a device reset is required.
 The UDP ports are allocated randomly to channels.
 You can define a UDP port range per Media Realm (see
Configuring Media Realms on page 174).
 If RTP Base UDP Port is not a factor of 10, the following
message is generated: 'invalid local RTP port'.
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.