AudioCodes Mediant 500 E-SBC User Manual page 764

Parameter
Web: RTP Base UDP Port
EMS: Base UDP Port
[BaseUDPport]
EMS: No Op Enable
CLI: no-operation-enable
[NoOpEnable]
EMS: No Op Interval
[NoOpInterval]
EMS: No Op Payload Type
CLI: no-operation-interval
[RTPNoOpPayloadType]
User's Manual
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.
Global parameter that defines the lower boundary of the UDP
port used for RTP, RTCP (RTP port + 1) and T.38 (RTP port +
2). You can also configure this functionality per specific calls,
using IP Profiles (IpProfile_RemoteBaseUDPPort). For a
detailed description of configuring the UDP port range, see
Configuring RTP Base UDP Port on page 176. You can also
configure this functionality per specific calls, using IP Profiles
(see Configuring IP Profiles on page 300).
Notes:

For this parameter to take effect, a device reset is required.

If this functionality is configured for a specific IP Profile, the
settings of this global parameter is ignored for calls
associated with the IP Profile.
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.
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.
Defines the payload type of No-Op packets.
The valid range is 96 to 127 (for the range of Dynamic RTP
Payload Type for all types of non hard-coded RTP Payload
types, refer to RFC 3551). The default is 120.
Note: When defining this parameter, ensure that it doesn't
cause collision with other payload types.
764
Mediant 500 E-SBC
Description
Document #: LTRT-10427